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Monitor 8
™
User Guide
Title Page
1280 Massachusetts Avenue
Cambridge, MA 02138
Business voice: (617) 576-2760
Business fax: (617) 576-3609
Web site: www.motu.com
Tech support: www.motu.com/support
SAFETY PRECAUTIONS AND ELECTRICAL REQUIREMENTS FOR THE MONITOR 8 (“PRODUCT”)
CAUTION! READ THIS SAFETY GUIDE BEFORE YOU BEGIN INSTALLATION OR OPERATION. FAILURE TO COMPLY WITH SAFETY INSTRUCTIONS
COULD RESULT IN BODILY INJURY OR EQUIPMENT DAMAGE.
HAZARDOUS VOLAGES: CONTACT MAY CAUSE ELECTRIC SHOCK OR BURN. TURN OFF UNIT BEFORE SERVICING.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR OTHER MOISTURE.
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
WARNING: DO NOT PERMIT FINGERS TO TOUCH THE TERMINALS OF PLUGS WHEN INSTALLING OR REMOVING THE PLUG TO OR FROM THE OUTLET.
WARNING: IF NOT PROPERLY GROUNDED THE MOTU PRODUCT COULD CAUSE AN ELECTRICAL SHOCK.
The MOTU product is equipped with a three-conductor cord and grounding type plug which has a grounding prong, approved by Underwriters' Laboratories and the Canadian Standards Association.
This plug requires a mating three-conductor grounded type outlet as shown in Figure A below. If the outlet you are planning to use for the MOTU product is of the two prong type, DO NOT REMOVE
OR ALTER THE GROUNDING PRONG IN ANY MANNER. Use an adapter as shown below and always connect the grounding lug to a known ground. It is recommended that you have a qualified electrician replace the TWO prong outlet with a properly grounded THREE prong outlet. An adapter as illustrated below in Figure B is available for connecting plugs to two-prong receptacles.
Figure A Figure B
Grounding lug
Screw
3-prong plug
Grounding prong
3-prong plug
Make sure this is connected to a known ground.
Properly grounded 3-prong outlet
Two-prong receptacle
Adapter
WARNING: THE GREEN GROUNDING LUG EXTENDING FROM THE ADAPTER MUST BE CONNECTED TO A PERMANENT GROUND SUCH AS TO A
PROPERLY GROUNDED OUTLET BOX. NOT ALL OUTLET BOXES ARE PROPERLY GROUNDED.
If you are not sure that your outlet box is properly grounded, have it checked by a qualified electrician. NOTE: The adapter illustrated is for use only if you already have a properly grounded two-prong receptacle. Adapter is not allowed in Canada by the Canadian Electrical Code. Use only three wire extension cords which have three-prong grounding type plugs and three-prong receptacles which will accept the MOTU product plug.
IMPORTANT SAFEGUARDS
1. Read these instructions. All the safety and operating instructions should be read before operating the product.
2. Keep these instructions. These safety instructions and the product owner’s manual should be retained for future reference.
3. Heed all warnings. All warnings on the product and in the owner’s manual should be adhered to.
4. Follow all Instructions. All operating and use instructions should be followed.
5. Do not use the product near water.
6. Cleaning - Unplug the product from the computer and clean only with a dry cloth. Do not use liquid or aerosol cleaners.
7. Ventilation - Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Heat - Do not install the product near any heat sources such as radiators, heat registers, stoves, or another apparatus (including an amplifier) that produces heat.
9. Overloading - Do not overload wall outlets and extension cords as this can result in a risk of fire or electrical shock.
10. Grounding - Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult and electrician for replacement of the obsolete outlet.
11. Power cord - Protect the product power cord from being walked on or pinched by items placed upon or against them. Pay particular attention to cords and plugs, convenience receptacles, and the point where they exit from the unit.
12. Power switch - Install the product so that the power switch can be accessed and operated at all times.
13. Disconnect - The main plug is considered to be the disconnect device for the product and shall remain readily operable.
14. Accessories - Only use attachments/accessories specified by the manufacturer.
15. Placement - Use only with the cart, stand, tripod, bracket or table specified by the manufacturer, or sold with the product. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
16. Surge protection - Unplug the product during lightning storms or when unused for long periods of time.
17. Servicing - Refer all servicing to qualified service personnel. Servicing is required when the product has been damaged in any way, such as when a power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the product, the product has been exposed to rain or moisture, does not operate normally, or has been dropped.
18. Power Sources - Refer to the manufacturer’s operating instructions for power requirements. Be advised that different operating voltages may require the use of a different line cord and/or attachment plug.
19. Installation - Do not install the product in an unventilated rack, or directly above heat-producing equipment such as power amplifiers. Observe the maximum ambient operating temperature listed below.
20. Power amplifiers- Never attach audio power amplifier outputs directly to any of the unit’s connectors.
21. Replacement Parts - When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards.
22. Safety Check - Upon completion of any service or repairs to this MOTU product, ask the service technician to perform safety checks to determine that the product is in safe operating conditions.
ENVIRONMENT, HEAT AND VENTILATION
Operating Temperature: 10°C to 40°C (50°F to 104°). The product should be situated away from heat sources or other equipment that produces heat. When installing the product in a rack or any other location, be sure there is adequate space around the product to ensure proper ventilation. Improper ventilation will cause overheating and can damage the unit.
TO REDUCE THE RISK OF ELECTRICAL SHOCK OR FIRE
Do not handle the power cord with wet hands. Do not pull on the power cord when disconnecting it from an AC wall outlet. Grasp it by the plug.
Do not expose this apparatus to rain or moisture. Do not place objects containing liquids on it.
AC INPUT
100 - 240VAC ~ • 50 / 60Hz • 0.5A max
Contents
Part 1: Getting Started
Quick Start Guide
Monitor 8 Front Panel
Monitor 8 Rear Panel
MOTU AVB Control Web App
About the Monitor 8
Packing List and System Requirements
Software Installation
Hardware Installation
Part 2: Using the Monitor 8
Presets
The Front Panel LCD
Working with Host Audio Software
Mixer Effects
Networking
Part 3: Appendices
Troubleshooting
Audio Specifications
Mixer Schematics
Updating Firmware
OSC Support
Index
III
About the Mark of the Unicorn License Agreement and
Limited Warranty on Software
TO PERSONS WHO PURCHASE OR USE THIS PRODUCT: carefully read all the terms and conditions of the “click-wrap” license agreement presented to you when you install the software. Using the software or this documentation indicates your acceptance of the terms and conditions of that license agreement.
Mark of the Unicorn, Inc. (“MOTU”) owns both this program and its documentation.
Both the program and the documentation are protected under applicable copyright, trademark, and trade-secret laws. Your right to use the program and the documentation are limited to the terms and conditions described in the license agreement.
Reminder of the terms of your license
This summary is not your license agreement, just a reminder of its terms. The actual license can be read and printed by running the installation program for the software.
That license agreement is a contract, and clicking “Accept” binds you and MOTU to all its terms and conditions. In the event anything contained in this summary is incomplete or in conflict with the actual click-wrap license agreement, the terms of the click-wrap agreement prevail.
YOU MAY: (a) use the enclosed program on a single computer; (b) physically transfer the program from one computer to another provided that the program is used on only one computer at a time and that you remove any copies of the program from the computer from which the program is being transferred; (c) make copies of the program solely for backup purposes. You must reproduce and include the copyright notice on a label on any backup copy.
YOU MAY NOT: (a) distribute copies of the program or the documentation to others;
(b) rent, lease or grant sublicenses or other rights to the program; (c) provide use of the program in a computer service business, network, time-sharing, multiple CPU or multiple user arrangement without the prior written consent of MOTU; (d) translate, adapt, reverse engineer, decompile, disassemble, or otherwise alter the program or related documentation without the prior written consent of MOTU.
MOTU warrants to the original licensee that the disk(s) on which the program is recorded be free from defects in materials and workmanship under normal use for a period of ninety (90) days from the date of purchase as evidenced by a copy of your receipt. If failure of the disk has resulted from accident, abuse or misapplication of the product, then MOTU shall have no responsibility to replace the disk(s) under this
Limited Warranty.
THIS LIMITED WARRANTY AND RIGHT OF REPLACEMENT IS IN LIEU OF,
AND YOU HEREBY WAIVE, ANY AND ALL OTHER WARRANTIES, BOTH
EXPRESS AND IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
LIABILITY OF MOTU PURSUANT TO THIS LIMITED WARRANTY SHALL BE
LIMITED TO THE REPLACEMENT OF THE DEFECTIVE DISK(S), AND IN NO
EVENT SHALL MOTU OR ITS SUPPLIERS, LICENSORS, OR AFFILIATES BE
LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING
BUT NOT LIMITED TO LOSS OF USE, LOSS OF PROFITS, LOSS OF DATA OR
DATA BEING RENDERED INACCURATE, OR LOSSES SUSTAINED BY THIRD
PARTIES EVEN IF MOTU HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS
WHICH MAY VARY FROM STATE TO STATE. SOME STATES DO NOT ALLOW
THE LIMITATION OR EXCLUSION OF LIABILITY FOR CONSEQUENTIAL
DAMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
Update Policy
In order to be eligible to obtain updates of the program, you must complete and return the attached Mark of the Unicorn Purchaser Registration Card to MOTU.
Copyright Notice
Copyright © 2015, 2014 by Mark of the Unicorn, Inc. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language, in any form or by any means whatsoever, without express written permission of Mark of the Unicorn, Inc.,
1280 Massachusetts Avenue, Cambridge, MA, 02138, U.S.A.
Limited Warranty on Hardware
Mark of the Unicorn, Inc. and S&S Research (“MOTU/S&S”) warrant this equipment against defects in materials and workmanship for a period of TWO (2) YEARS from the date of original retail purchase. This warranty applies only to hardware products;
MOTU software is licensed and warranted pursuant to separate written statements.
If you discover a defect, first write or call Mark of the Unicorn at (617) 576-2760 to obtain a Return Merchandise Authorization Number. No service will be performed on any product returned without prior authorization. MOTU will, at its option, repair or replace the product at no charge to you, provided you return it during the warranty period, with transportation charges prepaid, to Mark of the Unicorn, Inc., 1280
Massachusetts Avenue, MA 02138. You must use the product’s original packing material for in shipment, and insure the shipment for the value of the product. Please include your name, address, telephone number, a description of the problem, and the original, dated bill of sale with the returned unit and print the Return Merchandise
Authorization Number on the outside of the box below the shipping address.
This warranty does not apply if the equipment has been damaged by accident, abuse, misuse, or misapplication; has been modified without the written permission of MOTU, or if the product serial number has been removed or defaced.
ALL IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED IN DURATION TO TWO (2) YEARS FROM THE DATE OF THE
ORIGINAL RETAIL PURCHASE OF THIS PRODUCT.
THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE
AND IN LIEU OF ALL OTHERS, ORAL OR WRITTEN, EXPRESS OR IMPLIED.
No MOTU/S&S dealer, agent, or employee is authorized to make any modification, extension, or addition to this warranty.
MOTU/S&S ARE NOT RESPONSIBLE FOR SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF
WARRANTY, OR UNDER ANY LEGAL THEORY, INCLUDING LOST PROFITS,
DOWNTIME, GOODWILL, DAMAGE OR REPLACEMENT OF EQUIPMENT
AND PROPERTY AND COST OF RECOVERING REPROGRAMMING, OR
REPRODUCING ANY PROGRAM OR DATA STORED IN OR USED WITH
MOTU/S&S PRODUCTS.
Some states do not allow the exclusion or limitation of implied warranties or liability for incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state.
MOTU, Digital Performer, AudioDesk, Mark of the Unicorn and the unicorn silhouette logo are trademarks of Mark of the Unicorn, Inc.
Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries.
This equipment has been type tested and found to comply with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television equipment reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by any combination of the following measures:
• Relocate or reorient the receiving antenna
• Increase the separation between the equipment and the receiver
• Plug the equipment into an outlet on a circuit different from that to which the receiver is connected
If necessary, you can consult a dealer or experienced radio/television technician for additional assistance.
PLEASE NOTE: only equipment certified to comply with Class B (computer input/output devices, terminals, printers, etc.) should be attached to this equipment, and it must have shielded interface cables in order to comply with the Class B FCC limits on RF emissions.
WARNING: changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
Part 1
Getting Started
Quick Start Guide
CHAPTER
Thank you for purchasing a MOTU AVB interface!
Follow these easy steps to get started quickly.
1
Download and run the
MOTU AVB Installer or
MOTU AVB USB Installer.exe found here: http://www.motu.com/avb
2
(Optional) For quick access to the Monitor 8 from your iPad or iPhone, download the MOTU
AVB Discovery app from the Apple App Store.
☛
Your iPhone and iPad must be on the same
Wi-Fi network as your computer.
3
Connect the Monitor 8 to your computer with a
USB cable (included). If you have a Thunderboltequipped Mac running OS X Yosemite (10.10) or later, you can alternately connect the Monitor 8 to the Mac’s Ethernet port with a standard CAT-5e or
CAT-6 Ethernet cable.
4
Switch on the Monitor 8.
5
Open the
MOTU AVB Control web app by doing one of the following:
â–
If you have a Mac, choose the Monitor 8 from the
MOTU AVB Discovery app menu, as shown below.
MOTU AVB Discovery app menu
â–
If you have a PC, launch the
MOTU AVB WebUI
Setup shortcut found on the Windows desktop or in Start menu> All Programs> MOTU.
â–
From your iPad or iPhone, launch the MOTU
AVB Discovery app, and tap your interface.
â–
You should now see the MOTU AVB Control web
app in your browser, as shown on page 12. If not,
visit Appendix A, “Troubleshooting” (page 71).
â–
For advanced network options, and device
discovery from any modern browser, see chapter 9,
6
Choose a preset from the Quick Setup.
Preset
Audio interface
Application
Operate as a standard audio interface.
Stand-alone mixer Operate as a stand-alone mixer, where all inputs are mixed to the main outs and monitor outs.
Interface + mixer A combination of the above two presets.
Live recording with monitor mixing
Record a live concert or recording session, with a full monitor mix.
Stage I/O
Studio input expander
Route audio inputs from one AVB interface to another, through Ethernet cabling.
Routes the expansion unit’s physical inputs to the main system using AVB network streams.
Studio output expander
Stage I/O with monitor mixing
Optical converter
Optical converter with monitor mixing
Routes the main systems’s AVB network streams to physical outputs on the expansion unit.
Routes AVB audio streams to the Monitor 8 mixer, which distributes eight separate mixes to Monitor 8’s analog outputs.
Multi-channel digital-to-analog converter.
Routes the optical inputs to the Monitor 8 mixer, which distributes eight separate mixes to Monitor 8’s analog outputs.
7
8
Monitor 8 Front Panel
13 12 11
1 2 3 4 5 6 7 8
1. MAIN OUT volume control. This setting, along with all front panel settings, can also be adjusted from the
MOTU AVB Control web app.
2. AUX OUT volume control.
3. PHONE OUTPUTS with volume control for each
MONITOR GROUP (A-F).
4. MAIN OUT level meters.
5. AUX OUT level meters.
6. MONITOR GROUP level meters.
7. ANALOG INPUT METERS for the eight balanced (TRS) quarter-inch inputs on the rear panel.
8. ADAT OPTICAL input metering. At 1x sample rates (44.1 or 48 kHz), there are sixteen channels of input. At 2x
(88.2 or 96 kHz), there are eight channels.
9. SAMPLE RATE, CLOCK and status information.
10. POWER SWITCH : AVB and USB are “plug-and-play” protocols. That means that you can turn off Monitor 8 and turn it back on without restarting your computer.
11. The multi-purpose backlit LCD displays extensive level meters for all inputs and outputs. It can also show device settings and network information, using the digital rotary encoders to the left.
12. Push SELECT to enter the LCD menu. Turn SELECT to scroll through menus and settings. Push it to select the current setting. Push BACK to return to the previous menu level, and do so repeatedly to exit the menu altogether.
13. Push ID to display the network ID for the device.
9 10
Monitor 8 Rear Panel
6 1 2 3 4 5 7
9 8
1. The Monitor 8 is equipped with an auto-switching international power supply.
2. These ADAT optical “lightpipe” jacks provide 16 channels of 24-bit ADAT optical digital input at 1x sample rates
(44.1 or 48 kHz) or 8 channels at 2x sample rates (88.2 or
96 kHz). They are disabled at higher sample rates. Use them to route channels from another optical device, such as a mixer, to be included in each monitor group mix.
3. The MAIN OUT pair provides stereo analog output for primary (powered) studio monitors or PA speakers, or any other desired destination. Control volume from the
MOTU AVB Control web app or from the front panel volume control.
To hear audio playback from your host audio software on the MAIN OUT pair, assign audio tracks (and master fader) to these main outs. You can also use the MOTU AVB
Control web app to route live Monitor 8 inputs (and network inputs) here as well.
4. The AUX OUT pair provides auxiliary stereo analog output for secondary studio monitors, or any other desired destination. These connectors are balanced
(tip/ring/sleeve). Control volume from the MOTU AVB
Control web app or from the front panel volume control.
5. Monitor Groups E and F (output channels 9-10 and
11-12, respectively) provide two mirrored outputs:
1) a headphone output, which mirrors its corresponding front panel headphone output, and 2) a summed mono output (commonly used to feed a stage monitor), which also mirrors the headphone output.
6. Monitor Groups A through D provide three mirrored output pairs: 1) balanced stereo L/R (for wireless monitoring systems), 2) headphone (for wired headphone installations), and 3) summed mono (for stage monitors). All outputs within a group mirror each other and their corresponding headphone output on the front panel.
7. Equipped with very high quality 24-bit 192 kHz converters, these eight analog inputs are balanced TRS (tip/ring/ sleeve) quarter-inch connectors that can also accept an unbalanced plug (with the ring disconnected). Use them to include external analog sources into your monitor group mixes. These inputs are equipped with the
Monitor 8’s Precision Digital Trim™ feature: digitally controlled analog trims that let you adjust input level in
1 dB increments from the MOTU AVB Control web app.
8. Connect Monitor 8 to the computer here using a standard USB cable. If you plan to connect Monitor 8 to an AVB network, use the network port (instead of USB).
9. This AVB ethernet port provides industry standard IEEE
802.1 network connectivity to other network devices.
Examples include:
â–
Another Monitor 8 or any other MOTU AVB-equipped audio interface, such as the 1248, 8M, 16A, 24Ai, 24Ao,
112D, Monitor 8, etc.
â–
A standard ethernet hub or Wi-Fi router (for internet connection and communication with the MOTU AVB
Control web app software).
â–
A standard AVB Ethernet switch for high-speed, lowlatency, high-capacity audio connectivity to an AVB audio network.
â–
A recent-generation Mac (any Mac with a Thunderbolt port) running OS X Yosemite (10.10) or later. This allows you to operate the Monitor 8 as an audio interface over Ethernet.
â–
MOTU AVB Control Web App
CHAPTER
OVERVIEW
MOTU AVB Control is a web app that gives you complete control over the Monitor 8. If you have several MOTU AVB interfaces networked together, such as the Monitor 8 and 8M, you can control them all. If you are working with a large-scale network of many MOTU AVB interfaces, you can access and control any device on the network.
IT’S NOT ON YOUR HARD DRIVE
The MOTU AVB Control web app is served from the audio interface hardware itself, therefore it is not an application on your computer’s hard drive.
Instead, access it by using the MOTU AVB
Discovery Application, or through your web browser by typing your MOTU device’s IP Address into the address bar.
USE YOUR FAVORITE WEB BROWSER
The MOTU AVB Control web app runs in any modern web browser on any device connected to the Monitor 8, either directly or wirelessly through a Wi-Fi network. You can use any device you wish: a desktop computer, laptop, iPad, tablet, iPhone or smart phone. If it can run a web browser, it can run the web app. You can use any browser you prefer:
Chrome, Firefox, Safari, IE 11 etc. The latest versions are strongly recommended.
CONTROL FROM MULTIPLE DEVICES
You can run the web app on multiple host devices simultaneously.
RUN THE INSTALLER, GET THE APP
Visit www.motu.com/avb to get the latest MOTU
AVB installer and run it on your computer to install the MOTU AVB Discovery app and drivers. Visit the
Apple App Store to download the discovery app onto your iPad or iPhone.
MAKE HARDWARE AND NETWORK
CONNECTIONS
Connect the Monitor 8 to your computer or laptop with a USB cable. Make sure your iPad, iPhone, tablet or smartphone is connected to the same Wi-
Fi network as your computer or device. You can use any network connection scenario explained in
“Setup for web app control” on page 36.
LAUNCHING THE WEB APP
To launch the web app, do any of the following:
â–
If you have a Mac, choose the Monitor 8 from the
MOTU AVB Discovery app menu, as shown below.
If you are on Windows, launch the
MOTU AVB
WebUI Setup shortcut on the Windows desktop or in
Start menu> All Programs> MOTU.
â–
From your iPad or iPhone, launch the MOTU
AVB Discovery app.
â–
In your favorite web browser, type this URL:
localhost:1280. (This URL requires a USB connection to the Monitor 8.)
â–
If the Monitor 8 Ethernet port is connected to your Ethernet or Wi-Fi network, type the unit’s IP address (see below) into your browser.
You should now see the MOTU AVB Control web
app in your browser, as shown on page 12. If not
visit Appendix A, “Troubleshooting” page (71).
Obtaining the Monitor 8’s IP address
On the front panel of the Monitor 8, push the ID knob once. The LCD now displays the unit’s IP address, which should look something like this:
“IP
Address: 192.168.1.209”.
11
3
2
5
4
DEVICE TAB
6 7
1
8 9 10
17
12
1. If you have two or more MOTU AVB interfaces, the Device list lets you choose the one you are currently controlling with the web app.
2. The Aux Mixing tab lets you view each Aux bus in the mixer, one at a time.
3. The Mixing tab gives you access to the mixing and DSP in the interface.
4. The Routing tab displays a grid matrix, where you can make direct connections between inputs and outputs, your computer, the mixer, and network audio streams, if networked interfaces are connected.
5. The Device tab has settings for the hardware itself, such as analog input and output trim.
6. Expands and collapses the sidebar.
7. Lets you create, save, recall and manage presets for the Monitor 8.
These presets capture and recall the complete state of the device (all settings in all tabs).
8. Choose the desired sample rate.
9. Click to rename the interface. To restore the default name, delete the current name.
10. The Quick Setup button prompts factory presets used to configure your interface for a specific applica-
tion. See chapter 5, “Presets”
11. Click this device ID button to identify the unit you are currently viewing and controlling with the web app software. The front panel LCD on the hardware itself will flash the name of the device, and its name will also
12. If an update is available for your device, and the computer you are viewing it from is connected to the internet, you’ll be notified here. Click
More Info to learn what’s new and start the update process. Firmware updating requires a network
“Updating Firmware” page (79).
13. Choose the clock source from the
Clock Mode menu. Your MOTU device will resolve its digital clock to this master source.
14. The Clock Status icon indicates that
the current device (1) is successfully
resolved to its chosen Clock Mode
source (13). If it cannot lock for some
reason, this icon flashes red. Check your chosen clock source, cables, etc.
15. If you have multiple MOTU AVB interfaces, one of them may serve as a master clock source for the network. Click the Become Clock
Master button to choose the current
interface (1) as the master clock
source.
16. The Input Settings provide digitally controlled analog trim from -96 to
+22 dB.
17. The Output Settings provide full volume range from -127 to zero.
M O T U A V B C O N T R O L W E B A P P
11
12
13
14
15
16
DEVICE TAB (CONTINUED)
19 20
18
25
24
23
21
22
Scroll down to view these additional
Device tab settings.
18. In the Input/Output Banks sections, you can disable any banks that you are not using. Doing so hides them from the routing matrix and mixer to simplify operation. Doing so also helps conserve DSP resources.
19. AVB is IEEE’s Audio Video Bridging
Ethernet standard for highbandwidth, low-latency audio streaming over Ethernet. If your
Monitor 8 is connected to a 2nd
MOTU AVB interface through its network port, or to an AVB switch for access to an extended AVB network, you can stream audio channels to and from other devices on the network. AVB streams are handled in banks of eight channels, so if you enable 8 out of 8 streams, that’s 64
channels. See chapter 9, “Networking” (page 63).
20. If you have AVB network input streams enabled, connect them to the output streams of other devices on the network here. This is how you route audio from the other devices to the Monitor 8.
21. In the Computer Setup section, you can specify how many audio channels you would like to be able to stream to and from your computer, up to 24 channels each way, simultaneously. Map them as desired in
22. Use these buttons to manually check for and install updates for your
MOTU AVB device. For complete
details, see Appendix D, “Updating
Firmware” page (79). Updating from
a file can be done offline from your computer, using an update you’ve obtained through MOTU’s web site or tech support department. The
Check For Updates button requires that the computer (or device) you are using to view the Monitor 8 is connected to the internet through a local network or Wi-Fi. Updating from the internet is easy and convenient.
23. Use these buttons to reboot (restart) the device, or restore its factory presets.
24. In the Optical Setup section, you can choose between 8-channel ADAT or stereo TOSLink formats for bank A input and output, independently. At
882. or 96 kHz, the ADAT setting supports 4-channel SMUX format.
25. The digital mixer in the Monitor 8 supports up to 48 channels. If you don’t need that many inputs, you can lower the number here to simplify mixer and routing operation and conserve DSP bandwidth for effects processing.
13
M O T U A V B C O N T R O L W E B A P P
20
19
18
17
3
2
1
ROUTING TAB
4 5 6 7
8 9
10
14
15
11
12
13
16
14
The Routing Tab lets you route inputs to outputs. Outputs are listed by row on the left; inputs are listed in columns across the top. Simply click in the grid to make a single connection. Click and drag to make multiple connections in one gesture. To route a single input to multiple outputs, make multiple connections vertically in the same column below the input. To mix multiple inputs to the same output, you’ll need to use the
mixer (page 15) and the Mix In bank in
1. In its collapsed form, (shown here), the sidebar displays icons for each tab.
2. Click this icon to view the Routing tab, shown on this page.
3. Click here to show or hide the sidebar.
4. Create, save, recall and manage routing presets.
5. Outputs are listed in rows on the left.
6. When you make a connection, the source (input) signal is listed by name here in the Source column, just to the right of the output it is being routed to.
7. Inputs are listed in columns across the top of the grid, starting with the physical inputs on the hardware itself. In this example, the eight analog inputs are routed to the mixer, along with eight ADAT digital inputs and an 8-channel network stream from a 16A interface.
8. The From Computer input bank lets you route audio channels from your host audio software to any output, including AVB network streams or the mixer, where you can mix computer audio with local inputs.
Use the Device tab to choose how many computer channels are available.
9. AVB streams are 8-channel banks that let you route audio to or from other devices on the AVB network (if any are connected) to local hardware inputs and outputs. Use
the Device tab (page 13) to config-
ure how many AVB streams you wish to work with. If you aren’t working with network audio, you can set the number of streams to zero.
10. These input streams are busses that originate from the mixer, which supplies the main mix bus, monitor mix bus, seven stereo aux busses, three stereo group busses, a reverb return bus and postFX channel sends
(for sending processed inputs to the computer or elsewhere). You can route these mixer busses to any
outputs you wish (5), including
physical outputs, host software on your computer, other devices on the
AVB network, or even back in to the mixer (beware of feedback loops!)
11. Use these triangles to expand or collapse groups of inputs. For example, it might be convenient to collapse banks that you are not using at the moment.
12. Click a channel label to rename it.
13. Audio activity indicators.
14. Here, outputs from the mixer are being routed to outputs on the
Monitor 8. The Main Mix and
Monitor busses are being routed to the Main Outs and Aux Outs, respectively. Mixer Aux busses are being routed to Monitor Groups A-F.
15. Click the grid to make a connection.
Click a connection to remove it. Click and drag to make or break multiple connections in one gesture.
16. The Mix In group lets you route audio to the 48-channel mixer.
17. These AVB output streams let you route any audio to other devices on the AVB network.
18. The To Computer output bank routes any input to host audio software running on your computer. Use the
Device tab to choose how many computer channels are available.
19. Use these triangles to expand or collapse groups of outputs.
20. These are the physical outputs on the interface itself.
M O T U A V B C O N T R O L W E B A P P
MIXING TAB
3 4 5 6
7
8 9 10 11 12 13 14
15
16
17
29
28
27
2
1
30
18
19
20
21
26
22
23
25
24
The Mixing tab gives you full access to the 48-channel mixer in the Monitor 8, which provides a main mix bus, monitor bus, three group busses, seven aux busses, and a dedicated reverb bus. Use the Device tab to configure how many inputs you wish to work with (up to 48).
Use the Routing tab (page 14) to route
channels to the mixer inputs. Channels can come from any source, such as the physical inputs on the interface, channels coming from the computer, or channels coming from the AVB network.
1. Shows and hides the Mixer Setup sidebar (3), which lets you show and hide channels, channel strip settings, effects, and the Legend (6).
2. The Mixing tab selects the mixer.
3. Use the Mixer Setup sidebar to show and hide elements in the mixer.
4. Shows and hides all elements in the section with one click.
5. Create, save, recall and manage mixer presets.
6. This column is the Legend. It provides labels and controls for channel strip sections. The menu at the top lets you create, name, save and manage entire mixer presets.
7. Mixer input channels.
8. This input channel has its Gate and
Compressor enabled. Disabled effects are grayed out.
9. This is Group bus 1-2. You can send inputs to this group with their Group send fader (24). Groups are sent to the Main Mix with its Main send fader (24) or aux busses (19).
10. Group buses, the main mix bus, and the reverb return bus are equipped with the Leveler, a vintage compressor modeled after the Teletronix
LA-2A leveling amplifier.
11. The reverb channel strip provides controls for the reverb processor. Use the reverb send on individual inputs or groups to route them to the reverb bus, which can then be mixed in with the main mix or aux busses.
Disable the reverb processor to use it as an extra group.
12. The Monitor Bus can mirror the output of any other bus, or it can act
as a separate Solo bus. See page 18.
13. The Main Mix bus is the master fader for the entire mixer. You can add EQ and Leveler compression.
14. You can adjust Aux bus output levels here, or in the Aux Mixing tab shown
15. Click a name to change it, except for the Main Mix, Monitor, and Reverb busses, which cannot be changed.
16. Stereo toggle to switch channels pairs between mono or stereo. Use the other menus to manage channel strip presets and to choose audio sources and destinations for mixer inputs and bus outputs.
17. Gate processing for inputs.
18. The Dynamics section provides a conventional compressor for inputs and the Leveler for output busses.
19. Reverb and aux sends.
20. Solo and mute. On the Monitor bus, the SC button clears all solos.
21. Channel faders.
22. Choose the source for the Monitor bus from this menu. It can mirror any output bus or the Solo Bus.
23. When Follow Solo is enabled, the
Monitor bus temporarily switches to the solo bus when any channel is soloed.
24. Group sends.
25. ‘S’ lets you solo the group. ‘PRE’ toggles the sends between pre- and post-fader routing, i.e. before or after the channel fader.
26. Show and hide output busses here.
27. Show/hide all busses with one click.
29. Show and hide inputs here.
30. Show/hide all inputs with one click.
15
M O T U A V B C O N T R O L W E B A P P
AUX MIXING TAB
3 4 5
15
14
13
2
1
16
6
7
8
9
10
11
12
16
The Aux Mixing tab provides quick access to the Monitor 8’s mix busses (aux busses, groups and reverb bus), viewed one at a time. Choose a bus in the Aux
Mix Target section and then use the faders to directly mix the send levels from all mixer inputs, groups, and the reverb bus.
1. Shows and hides the Mixer Setup
sidebar (3), which lets you show and
hide channels.
2. The Aux Mixing tab (shown on this page) gives you access to the Aux busses and groups in the mixer.
3. Use the Aux Mix Target sidebar to control which aux bus or group you are currently viewing. You can also show/hide inputs and group sends.
4. Click the aux bus or group you wish to view in the window. In this example, Aux bus 1-2 is being displayed.
5. These are mixer inputs (aux sends from each mixer channel). To include an input in the aux bus mix, simply bring up its fader.
6. These are group bus faders.
7. This is the mixer’s reverb bus fader.
8. This is the master fader for the
current aux bus being viewed (4).
9. Indicates if the input or group is stereo or mono. This indicator is for display purposes only. To toggle between mono and stereo operation, use the toggle switch in the
Mixing tab (item #16 on page 15).
10. Solo and mute for the aux bus master fader.
11. When Prefader is enabled, all send levels to the aux bus are independent of the main fader for each channel. In other words, changing an individual channel’s main fader in the Mixing tab won’t affect its send level to the aux bus.
12. Click the View Personal Mix button to open a new web page that displays only that specific Aux Mix or
Group.
13. Show and hide mix groups and the reverb bus here.
14. Use the Groups button here to show or hide all groups with one click.
15. Show and hide mixer inputs
(channel sends) here.
16. Show and hide all mixer inputs with one click here.
M O T U A V B C O N T R O L W E B A P P
MIXER INPUT CHANNEL STRIPS
1
2 3 4 5
26
25
6
7
8
9
3
24
23
10
4
11
12
13
14
15
22
16
17
18
19
20
21
M O T U A V B C O N T R O L W E B A P P
To access a mixer input channel strip, go
to the Mixing tab (page 15), reveal the
side bar (item #3 on page 15), and then show the input channel you want in the
Mixer Inputs section (29).
To show and hide sections of the channel strip, such as EQ or the compressor, use the Controls section of the side bar (item
#3 in the Mixing tab on page 15).
1. Click the input channel name to change it. Delete the current name to restore the default name.
2. Provides hardware settings for inputs, if any, on other MOTU AVB interfaces. If there are no hardware settings for the assigned input, this icon is grayed out.
3. Choose the source for the input channel. You can also make this setting directly on the Routing grid
4. Create, name, save and recall channel strip presets.
5. Toggles the input between mono and a stereo pair.
6. High Pass Filter with cutoff frequency.
7. Each effect in the channel strip (High
Pass Filter, Gate, EQ, etc.) has an on/ off button (on the left) and a preset menu on the right, for managing presets that apply only to that processing module. For example, you can create your own EQ presets for the
EQ modules.
8. The Gate processor provides standard attack, threshold and release controls.
9. The Gate indicator turns red when the gate is engaged.
10. The EQ section provides four bands of parametric EQ, each with standard
Gain, Frequency, and Bandwidth settings.
11. The High and Low EQ bands provide a
Shelf filter button for standard high and low shelf filtering.
12. The Compressor provides standard controls for Threshold, Ratio, Attack,
Release and Gain. Normally, the compressor operates in Peak mode, where signal peaks determine the input level. Engage the RMS button to uses RMS values (a computational method for determining overall loudness) to measure the input level.
13. Input level and gain reduction meters for the compressor.
14. Aux and reverb sends.
15. Solo/Mute. Mute affects all sends as well as the main channel. Pre-fader sends are not affected by Mute.
16. Move the fader to adjust level.
Double-click to return to zero (unity gain) or -
∞.
17. Click the dB scale numbers to make the fader jump exactly to that level.
Click and drag horizontally to jump consecutive faders to the same level.
18. Click to type in an exact dB level.
19. Channel pan. For mono inputs, double-click to center.
20. Main Mix Slider is used to feed signal to the Main Mix. Slider is set to 0 dB by default, so all channel strips are pre-routed to the Main Mix bus. If a channel is being sent to a Group
(which will eventually be fed to the
Main Mix), drag the slider to -
∞ so it is not sent to Main Mix directly.
21. Group sends.
22. ‘S’ lets you solo the group. ‘PRE’ toggles the sends between pre- and post-fader routing, i.e. before or after the channel fader.
23. Clears all solos.
24. ‘S’ lets you solo the Aux bus. ‘PRE’ toggles the sends between pre- and post-fader routing, i.e. before or after the channel fader. The dots let you toggle the Aux bus between mono and stereo.
25. This side bar, with the section labels in it, can be shown or hidden using the Legend switch in the Controls section of the side bar (item #3 in the
26. Shows how much DSP power is being used by the mixer hardware. To free up DSP bandwidth, try reducing the number of mixer ins, disabling
channel effects, reverb, etc. See “DSP
Usage” on page 62 for more info.
17
18
12
11
MAIN MIX AND MONITOR CHANNEL STRIPS
1 2
3 4 5 6
3 4
14
13
5
7
8
9
10
To access the Main Mix and Monitor bus channel strips, go to the Mixing tab
(page 15) and scroll the display to the
right, beyond the inputs and groups.
To show and hide sections of the channel strip, such as EQ or the Leveler, use the
Controls section of the side bar (item #3 in
1. By default, the Monitor bus serves as a solo bus. However, it can be set to mirror the main mix bus, or any other aux bus, group, or the reverb bus, in addition to monitoring solo. Make
this choice in the source menu (12).
Use the Routing grid (page 14) to
specify the output for the Monitor bus.
2. The Main Mix bus is the primary stereo mix.
3. Provides hardware settings for any assigned outputs that have them. For example, if the Main Mix bus is assigned to the Main Outs on the
Monitor 8, you’ll see trim settings for the outputs. This item is grayed out if there are no hardware settings for output.
4. Use this output assignment widget to choose the destination — or multiple destinations — for the bus. You can also make this setting directly on
5. Use the preset menus to create save, recall, and otherwise manage channel strip presets for the Monitor bus and Main Mix bus.
6. Indicates that the bus is stereo.
7. The four-band parametric EQ for the
Main Mix bus operates the same as described for input channels (items
10 and 11 on page 17), including
High and Low Shelf filter options.
8. The Leveler provides specialized gain reduction modeled after the legendary Teletronix LA-2A Leveling Amplifier. For complete details, see
9. Mutes for the Main Mix bus and
Monitor bus.
10. Master faders for the Main Mix bus and Monitor bus. Use the same techniques described for input channel faders (items 16, 17 and 18
11. When Follow Solo is enabled, the
Monitor bus switches to the solo bus when any channel is soloed. NOTE: if an aux bus is soloed, then the Monitor bus carries only the soloed aux bus
(any current channel solos are excluded).
12. Choose the source for the Monitor bus from this menu. It can mirror the main mix, any aux bus, group, the reverb bus, or it can serve only as a
Solo bus.
13. The SC button clears all solos.
14. This mid-band EQ is currently disabled (and therefore grayed out).
M O T U A V B C O N T R O L W E B A P P
AUX BUS CHANNEL STRIPS
1 2
10 3
9
8
M O T U A V B C O N T R O L W E B A P P
5
6
7
4
Aux busses can be used to create sub-mixes.
An aux bus can be assigned to any output in
To access an Aux bus channel strip, go to the
Mixing tab (page 15), reveal the side bar (item
#3 on page 15), and then show the aux busses
you want in the Mixer Outputs section (26).
To show and hide the four-band EQ section of the channel strip, use the Controls section of the side bar (item #3 in the Mixing tab on
1. A stereo aux bus.
2. A mono aux bus.
3. Click this dot to toggle an aux bus between mono and stereo.
4. The four-band parametric EQ module for
Aux busses operates the same as described
for input channels (items 10 and 11 on page 17), including High and Low Shelf
filter options.
5. Aux bus solo and mute.
6. Aux bus master fader.
7. Click to type specific value manually.
8. Click the dB scale numbers to make the fader jump exactly to that level. Click and drag horizontally to jump consecutive faders to the same level.
9. A disabled EQ band.
10. Use these menus (hardware settings, output assignment, and presets) in a similar fashion as described for the Main
Out bus (items 3-5 on page 18).
19
GROUP AND REVERB CHANNEL STRIPS
1 2
9
20
6
8
7
3
5
4
Group busses can be used to create a mix subgroup, which is a set of inputs you wish to control together as a group. Groups differ from aux busses in that they have aux sends, a reverb send, as well as a main mix send. In addition, group busses are equipped with the Leveler.
The Reverb bus is a special group bus that provides a reverb processor. If you disable the reverb, the reverb bus functions as a (fourth) regular group bus.
To access the Group and Reverb bus channel
strips, go to the Mixing tab (page 15), reveal the
side bar (item #3 on page 15), and then show the desired Group busses or Reverb bus in the
To show and hide the four-band EQ section of the channel strip, use the Controls section of the side bar (item #3 in the Mixing tab on page 15).
1. A Group bus channel strip. Click the name to rename it. Delete the current name to return to its default.
2. The Reverb bus. If you disable the Reverb processor, it can be used as a fourth Group bus. The Reverb channel strip is twice as wide as other mixer channel strips to accommodate the Reverb processor controls.
3. Group busses and the Reverb bus are always stereo.
4. The four-band parametric EQ module for
Group busses and the Reverb bus operates the same as described for input channels
(items 10 and 11 on page 17), including
High and Low Shelf filter options.
5. The Reverb processor. For complete infor-
mation, see “Reverb” on page 61.
6. Main Mix sends.
7. Master faders for the Group and Reverb busses.
8. Mute and Solo.
9. Use these menus (hardware settings, output assignment, and presets) in a similar fashion as described for the Main Out bus
M O T U A V B C O N T R O L W E B A P P
CHAPTER 1
About the Monitor 8
Monitor 8 is a 24 x 16 x 8 monitor mixer, 6-channel headphone amplifier and USB/AVB audio interface with console-style 48-channel mixing and DSP effects. Monitor 8 can mix 24 inputs, multichannel computer audio, and dozens of AVB audio network channels to eight stereo busses: Main, Aux and monitor groups A thru F.
The Monitor 8 can operate as an audio interface for a studio workstation (DAW), as a standalone mixer, or as an auxiliary monitor mixing system in the studio or on stage. The following sections provide a brief overview of its main features and characteristics.
State-of-the-art A/D and D/A conversion
Monitor 8’s analog section employs state-of-theart 24-bit DACs or ADCs, which deliver analog recording and playback with remarkably high dynamic range at sample rates from 44.1 to 192 kHz.
Complementary I/O configurations
Monitor 8 delivers an exceptional amount of analog and digital audio I/O. In addition, it is designed to complement MOTU’s other AVBequipped audio interfaces, to deliver a wide range of I/O options. You can mix and match several interfaces and operate them as a unified I/O and mixing system. The following sections provide a bird’s-eye glance of the I/O configurations offered by each interface in the MOTU AVB family.
Each interface provides a variety of analog and digital interconnects, all active simultaneously, designed to provide everything you need for a wellequipped recording studio.
Monitor 8
40 simultaneous audio channels (54 connections)
Connection
Quarter-inch analog on bal/unbal TRS
XLR main out
Summed mono quarter-inch out
Headphone outs
ADAT optical digital (at 44.1 or 48 kHz)
Total I/O connections
Total I/O channels (discrete channels)
-
16
24
24
-
-
Input Output
8
10
2
6
12
-
30
16
Network I/O
Monitor 8 is also capable of handling eight
8-channel banks of network audio input and output for an additional 64 channels of simultaneous audio I/O.
Other MOTU AVB interfaces
The Monitor 8 is part of a larger family of audio interfaces, summarized below, with complementary I/O configurations.
1248
66 simultaneous audio channels
Connection
Quarter-inch analog on bal/unbal TRS
Mic inputs with individual preamps on XLR 4
Input Output
8 12
-
Hi-Z guitar inputs 2 -
Headphone output
ADAT optical digital (at 44.1 or 48 kHz)
-
16
2 x stereo
16
RCA S/PDIF digital up to 96 kHz with SRC stereo stereo
Total 32 34
21
22
8M
50 simultaneous audio channels
Connection
Quarter-inch analog on bal/unbal TRS
Mic/guitar inputs on combo XLR/TRS
Headphone output
ADAT optical digital (at 44.1 or 48 kHz)
Total
-
16
24
Input Output
8
8 stereo
16
26
16A
64 simultaneous audio channels
Connection
Quarter-inch analog on bal/unbal TRS
ADAT optical digital (at 44.1 or 48 kHz)
Total
Input Output
16 16
16
32
16
32
24Ai
72 simultaneous audio channels
Connection Input Output
Balanced analog on 3x D-sub or 6x Phoenix 24 -
ADAT optical digital (at 44.1 or 48 kHz) 24 24
Total 48 24
24Ao
72 simultaneous audio channels;
Connection Input Output
Balanced analog on 3x D-sub or 6x Phoenix 24
ADAT optical digital (at 44.1 or 48 kHz) 24 24
Total 24 48
Universal connectivity
The Monitor 8 can connect to a computer with high-speed USB 2.0, which is compatible with USB
3.0). It is USB audio class-compliant, which means that it is iPad compatible (with a camera connection kit) and does not require driver installation for USB connection to a computer.
Alternately, the Monitor 8 can be connected to the
Ethernet port on a recent-generation Mac (any
Mac with Thunderbolt on it) running Mac OS X
Yosemite (10.10) or later for audio interface operation through AVB Ethernet.
On-board DSP with mixing and effects
Monitor 8 is equipped with a powerful DSP engine that drives both an extensive routing matrix and a
48-input digital mixer with 12 stereo busses and effects. The mixer offers familiar operation modeled after large format mixing consoles.
32-bit floating point processing
All of the mixing and effects processing in the DSP engine is handled with 32-bit floating point calculations, to maintain and deliver virtually unlimited headroom and the utmost in sound quality.
Modeled vintage effects processing
Effects include “classic” reverb, compression modeled after the legendary Teletronix LA-2A compressor, and 4-band EQ modeled after British analog console EQs.
AVB system expansion and audio networking
AVB stands for the IEEE 802.1 Audio Video
Bridging Ethernet standard for high-bandwidth, low-latency audio streaming over Ethernet. The
AVB Ethernet network port on each MOTU interface lets you add a second AVB-equipped
MOTU interface using any standard CAT-5e
Ethernet cable. You can network up to five MOTU interfaces together using a MOTU AVB Switch™
(sold separately), and then run them as a standalone network or as an extended bank of I/Os for your computer-based production system (or both). You can even connect multiple computers, each with full access to all devices on the network
(including the other computers).
A B O U T T H E M O N I T O R 8
With additional standard AVB switches (from
MOTU or other brands) and standard Ethernet cabling, you can build an extensive AVB audio network. The entire network operates with nearzero network latency, even over very long cable runs. MOTU’s AVB implementation allows you to stream hundreds of audio channels among devices and computers on the network with guaranteed
Quality of Service (QoS), prioritizing audio streams over less important traffic.
Matrix routing and multing
Each MOTU interface provides completely flexible matrix-style audio routing and multing. You can route any analog or digital input, computer channel, or network stream to any other output, computer, or network device. You can also mult any single input to unlimited multiple output destinations.
24 channels of network audio I/O for your host computer
The Monitor 8 lets you stream up to 24 audio channels in and out, simultaneously, through its
USB connection to a host computer. Sources and destinations can include inputs and outputs on the device, inputs and outputs on other interfaces on the network, and even audio software apps running on other computers connected to other devices on the network.
Web app control
You can control on-board DSP, mixing, device settings, clock/sync settings, and network audio routing from the MOTU AVB Control web app software running in your favorite browser on a laptop, tablet or smart phone connected to the
Monitor 8 directly, or through your local Wi-Fi network. Multiple devices can be used simultaneously to access any audio interface settings on the network.
Stand-alone mixing with wireless control
If you connect the Monitor 8 to an Apple Airport or other Wi-Fi router with a standard Ethernet cable, you can control its powerful mixing and DSP effects from your smart phone or tablet, without a computer — great for live sound mixing from your iPad, tablet, or other wireless device.
ADAT digital input
Monitor 8 provides two 8-channel banks of optical digital input. Connect a digital mixer or other gear:
16 channels at 44.1/48 kHz or 8 channels at 88.2/96 kHz.
Comprehensive metering
The large backlit LCD displays all signal activity at a glance with detailed metering for all analog and digital I/O. You can access many hardware settings directly from the front panel.
Precision Digital Trim™
Analog inputs are equipped with digitally controlled analog trims, adjustable in 1 dB increments. Analog outputs offer 32 bit trim in the
DAC, also adjustable in 1 dB increments. You can save your trim configurations as a preset for instant recall.
Rack mount or desktop operation
Monitor 8 is housed in a sturdy, metal-alloy,
19-inch, rack-mountable unit. The rack mounting brackets can be removed using a 7/64” hex wrench for desktop operation.
AudioDesk
AudioDesk is a full-featured audio workstation software package for Mac and Windows that is available as a free download for you as a Monitor 8 owner. Visit motu.com/avb to obtain your copy.
AudioDesk provides multi-channel waveform editing, automated virtual mixing, graphic editing of ramp automation, real-time effects plug-ins with
23
A B O U T T H E M O N I T O R 8
crossfades, support for many third-party audio plug-ins, sample-accurate editing and placement of audio, and more.
24
A B O U T T H E M O N I T O R 8
CHAPTER 2
Packing List and
System Requirements
PACKING LIST
The Monitor 8 ships with the items listed below. If any of these items are not present in the box when you first open it, please immediately contact your dealer or MOTU.
â–
One audio interface
â–
One USB cable
â–
One power cord
â–
One manual
â–
Product registration card
SYSTEM REQUIREMENTS
â–
A 1 GHz Intel-based Mac or Pentium-based PC
(or compatible). Faster CPUs are recommended for best performance.
â–
2 GB RAM; 4 GB or more recommended.
â–
OS X 10.8 or later; Windows 7 or later; for operation as an AVB Ethernet audio interface, Mac
OS X 10.10 or later is required, running on a recent-generation Mac (any Mac with a
Thunderbolt port on it).
â–
Available high-speed USB 2.0 (or 3.0) port.
â–
A large hard drive (preferably at least 500 GB).
PLEASE REGISTER TODAY!
Please register your Monitor 8 today. There are two ways to register.
â–
Visit www.motu.com/register
OR
â–
Fill out and mail the included product registration card
As a registered user, you will be eligible to receive technical support and announcements about product enhancements as soon as they become available. Only registered users receive these special update notices, so please register today.
Thank you for taking the time to register your new
MOTU products!
25
26
P A C K I N G L I S T A N D S Y S T E M R E Q U I R E M E N T S
CHAPTER 3
Software Installation
OVERVIEW
USB 2.0 class-compliant operation. . . . . . . . . . . . . . . . . . . 27
Operation as an AVB Ethernet audio interface . . . . . . . 27
Software installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Audio drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
MOTU AVB Discovery app for Mac . . . . . . . . . . . . . . . . . . . 28
MOTU AVB WebUI Setup for Windows . . . . . . . . . . . . . . . 28
MOTU AVB USB Control Panel . . . . . . . . . . . . . . . . . . . . . . . 28
AudioDesk workstation software . . . . . . . . . . . . . . . . . . . . 29
Working with host audio software. . . . . . . . . . . . . . . . . . . 29
USB 2.0 CLASS-COMPLIANT OPERATION
The Monitor 8 is a USB 2.0 audio class-compliant device. This means that you can connect it to your
Mac with a USB cable and use it without installing any software drivers. The computer recognizes the
Monitor 8 as a USB audio device and makes its inputs and outputs available to your host audio software. Basic settings, such as the hardware’s sample rate, are made in either your host software
(Mac) or your system settings (Windows).
☛
In this scenario, the Monitor 8 provides basic audio input and output, and no software driver installation is necessary.
As explained earlier in this guide, the MOTU AVB
Control web app provides full access to all settings in the device, including the extensive on-board routing, mixing, and effects processing features.
Since the web app is served from the audio interface hardware itself, it does not require any software installation on your computer; all it requires is a network connection between your computer and the Monitor 8 with a standard
Ethernet cable, Ethernet hub, or shared Wi-Fi network. For details about accessing the web app
through the network port, see “MOTU AVB
OPERATION AS AN AVB ETHERNET AUDIO
INTERFACE
To use Monitor 8 as an audio interface over AVB
Ethernet, all you need is a recent Mac (any Mac that has a Thunderbolt port on it) with Mac OS X
Yosemite (10.10) or later installed. Connect the network port on the Monitor 8 to the Ethernet port on the Mac using a standard, high-grade (CAT-5e or CAT-6) network cable up to 100 meters in length. You can then use Monitor 8 as a standard, low-latency multi-channel audio interface with any
Core Audio compatible host software running on the Mac.
☛
In this scenario, the Monitor 8 provides basic audio input and output, and no software driver installation is necessary.
For details about accessing device settings in the web app through a network port connection, see
“MOTU AVB Control Web App” on page 11.
SOFTWARE INSTALLATION
Software installation is required for any of the following scenarios:
â–
You are using a PC running Windows 7 or later.
â–
You will use Monitor 8 as a USB audio interface, and you want to access the web app without the network port.
â–
You will be using multiple MOTU interfaces.
If none of the above scenarios apply to you, then you can skip software installation if you wish, and proceed to details about accessing the web app
through the network port, see “MOTU AVB
27
28
Download and run the MOTU AVB Audio
Installer
To download the latest MOTU AVB audio installer for Mac or Windows, visit www.motu.com/avb.
Follow the directions that the installer gives you.
☛
We recommend that you run the software installer before you connect the Monitor 8 to your computer and power it on. This ensures that all driver components are properly installed in your system.
AUDIO DRIVERS
On the Mac, no USB audio driver is installed because the Monitor 8 is USB audio class compliant, and USB audio operation is handled by
Mac OS X. On Windows, the installer provides
USB ASIO and Wave drivers.
MOTU AVB USB ASIO Driver
On Windows, to enable the Monitor 8 in your ASIO host software, choose the MOTU AVB USB ASIO driver.
MOTU AVB WEBUI SETUP FOR WINDOWS
On Windows, the installer provides a
MOTU AVB
WebUI Setup shortcut found on the Windows desktop or in Start menu> All Programs> MOTU.
Use this shortcut to access the MOTU AVB Control web app directly in your favorite web browser.
MOTU AVB USB CONTROL PANEL
On Windows, the MOTU AVB USB Control Panel
(
Start menu> All Programs> MOTU) provides three tabs: Status, Buffer Settings and Info. The
Buffer Settings tab provides several basic settings for the AVB USB driver.
Figure 3-1: Choosing the MOTU AVB ASIO driver in Cubase.
MOTU AVB DISCOVERY APP FOR MAC
On the Mac, the MOTU AVB Discovery app is installed in your Mac’s applications folder; a shortcut is installed for it, too (as shown on page
page 7). It locates all MOTU AVB interfaces
connected to the Mac, either directly through USB or on your network, and displays them in a list.
Choose an interface to access its settings through
the web app (“MOTU AVB Control Web App” on page 11).
Figure 3-2: The MOTU AVB USB Audio Control Panel Buffer Settings tab.
USB Streaming Mode
USB Streaming Mode (Figure 3-2) determines how frequently the USB driver transfers audio. Smaller settings reduce latency. This setting determines the latency for standard Windows audio applications
(such as Media Player). For further information
about latency, see “Reducing monitoring latency” on page 53.
ASIO Buffer Size
ASIO Buffer Size (Figure 3-2) determine how much delay you hear when monitoring live inputs through your audio software: larger buffers produce more delay; smaller buffers produce less.
For complete information about this setting, see
“Working with Host Audio Software” on page 49.
S O F T W A R E I N S T A L L A T I O N
AUDIODESK WORKSTATION SOFTWARE
AudioDesk is an advanced workstation software package that lets you record, edit, mix, process, bounce and master multi-track digital audio recording projects. Advanced features include realtime effects processing, recording, and much more.
See the AudioDesk User Guide, available on your computer hard drive as a PDF document.
Figure 3-3: AudioDesk.
WORKING WITH HOST AUDIO SOFTWARE
For further information about using the Monitor 8
with host audio software, see “Working with Host
S O F T W A R E I N S T A L L A T I O N
29
30
S O F T W A R E I N S T A L L A T I O N
CHAPTER 4
Hardware Installation
OVERVIEW
Rack installation and heat . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
USB audio interface setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
AVB Ethernet audio interface setup. . . . . . . . . . . . . . . . . . 32
Setup for two interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Setup for three to five interfaces. . . . . . . . . . . . . . . . . . . . . 33
Setup for a multi-switch network . . . . . . . . . . . . . . . . . . . . 34
Setup for multiple interfaces. . . . . . . . . . . . . . . . . . . . . . . . . 35
Setup for web app control . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
A typical Monitor 8 setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Audio connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Syncing an AVB network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Syncing multiple AVB audio interfaces connected to a Mac . . . . 40
RACK INSTALLATION AND HEAT
When installing the Monitor 8 in a 19-inch rack, leave extra space above, below, behind and on either side of the unit to provide adequate ventilation and heat dispersion. Do not install it near other gear that generates excessive heat.
USB AUDIO INTERFACE SETUP
Use this setup if you want to use your MOTU device as a USB audio interface.
â–
Use a standard USB cable.
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Connect to any USB port (USB2.0 or 3.0).
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See “USB 2.0 class-compliant operation” on page 27.
â–
No driver installation is necessary.
31
AVB ETHERNET AUDIO INTERFACE SETUP SETUP FOR TWO INTERFACES
OR
Thunderbolt is available on other
MOTU AVB-equipped interfaces, such as the 1248, 8M, 16A and 112D.
32
Use this setup if you want to use the Monitor 8 as an
AVB Ethernet audio interface for a recentgeneration Mac (i.e. any Mac with a Thunderbolt port on it). Mac OS X Yosemite (10.10) or later is also required for AVB audio I/O.
â–
Use a standard CAT-5e or CAT-6 cable.
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Connect to the computer’s Ethernet port.
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See “Operation as an AVB Ethernet audio interface” on page 27.
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No driver installation is necessary.
â–
Enable at least one AVB stream (item #19 on page 13).
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Launch the Mac’s Audio MIDI Setup utility to enable the Monitor 8 and set the clock source and sample rate.
â–
The number of AVB audio channels that OS X can handle depends on the speed of your Mac.
â–
If applicable, see “Syncing multiple AVB audio interfaces connected to a Mac” on page 40.
About CAT-5e cables
Use shielded
CAT-5e or
CAT-6 cables, which are a higher grade version of a standard Ethernet cable.
They are available wherever network cables are sold.
Use this setup if you want to connect two MOTU interfaces to your computer.
â–
The connection to the computer can be either
USB or Thunderbolt, if you have a Thunderboltequipped MOTU AVB interface such as the 1248,
8M, 16A or 112D.
â–
Use a standard Thunderbolt cable. Place it at the end of the Thunderbolt chain.
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Use any standard CAT-5e Ethernet network cable to connect the two interfaces together using their NETWORK ports.
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As an alternative, see “Setup for multiple interfaces” on page 35.
H A R D W A R E I N S T A L L A T I O N
SETUP FOR THREE TO FIVE INTERFACES
Use this setup if you want to connect three to five
MOTU interfaces to your computer using a MOTU
AVB Switch™ (sold separately).
â–
The connection to the computer can be USB or
Thunderbolt (if you have a Thunderbolt-equipped
MOTU AVB interface). Use Thunderbolt, if possible, to support a large number of audio streams to and from the networked interfaces. A single Thunderbolt connection supports 128 channels in and out, simultaneously. If you need more channels, and your computer has another available Thunderbolt or USB port, you can make a second connection, with full access to the network from both ports.
â–
Use standard CAT-5e Ethernet network cables to connect the interfaces to the MOTU AVB Switch using their NETWORK ports.
â–
Use the five AVB NETWORK ports on the switch
(not the Ethernet port).
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Network cable lengths can be long: 100 meters with standard copper wire cables; much longer with fiber-optic network cables.
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See “About CAT-5e cables” on page 32.
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As an alternative, see “Setup for multiple interfaces” on page 35.
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To add more computers to the network, connect them to any interface, as shown. All computers and interfaces have full access to each other.
â–
See chapter 9, “Networking” (page 63).
Additional computers are optional.
All computers and interfaces have full access to each other on the network.
Thunderbolt is available on other MOTU AVB-equipped interfaces like the 1248,
8M, 16A and 112D.
OR
33
H A R D W A R E I N S T A L L A T I O N
SETUP FOR A MULTI-SWITCH NETWORK
Use this setup if you want to connect more than five
MOTU interfaces to an extended network that employs multiple AVB switches. AVB Ethernet is an industry standard, so you can use MOTU AVB
Switches or 3rd-party AVB switches.
â–
You can daisy-chain switches in serial fashion, but don’t create loops. For example, switches A, B, and C below are chained properly, but don’t connect C back to A. Alternately, you could connect both Switches B and C to Switch A.
â–
For further information, see chapter 9,
OR
If you have Thunderbolt-equipped MOTU AVB interfaces on the network (such as the
1248, 8M or 16A), in addition to your Monitor 8, use them for computer connections.
The computer then has access to 128 channels of input and output to the network.
OR
34
Additional switches, interfaces, and computers.
Switch A
OR
OR
Switch B
OR
Switch C
H A R D W A R E I N S T A L L A T I O N
SETUP FOR MULTIPLE INTERFACES
It is possible to connect multiple MOTU interfaces directly to your host computer through multiple
USB (and Thunderbolt) ports. Alternately, you can connect multiple interfaces, operating as AVB
Ethernet audio interfaces, using an AVB switch connected directly to the Mac. However, there are several disadvantages to using any of these direct connection schemes:
â–
The audio interfaces will not be clocked to one another and may be susceptible to drift, unless you use external word clock connections (if available).
You are better off using the AVB network
connections shown on pages 32-34. In this setup,
the interfaces are very tightly synchronized with each other (measured in pico seconds) through their network connections.
â–
You will not be able to route audio directly from one audio interface to another. You are better off using the AVB network connections shown on
pages 32-34, which allows you to route audio
streams (hundreds at a time) directly among interfaces with near-zero latency.
Connecting multiple interfaces using
Thunderbolt
If you have other MOTU AVB interfaces with
Thunderbolt connectivity (1248, 8M, 16A or
112D) and your host computer has two or more
Thunderbolt ports, you can connect one interface to each port, either directly or at the end of a
Thunderbolt daisy chain (on either port or both ports).
Connecting multiple interfaces using
Thunderbolt and USB
Another way to operate multiple interfaces on the same host computer is to connect the first interface to a Thunderbolt port and the second to a USB 2.0
(or 3.0) port.
Multiple interfaces and USB
When connected through USB, the Monitor 8 operates as a USB 2.0 device, even when connected to a USB 3.0 port. USB 2.0 provides enough bus speed for several USB 2.0 devices, but due to the
Monitor 8’s high-performance requirements for real-time operation and low latency timing, we recommend the following:
â–
Do not connect more than two units to your computer’s USB 2.0 or 3.0 port(s).
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When two units are connected with USB 2.0, don’t connect other USB 2.0 or 3. 0 devices, such as external hard drives.
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For best results, establish clock synchronization with other interfaces connected to the same computer. You can use optical or AVB to achieve clock synchronization.
Multiple AVB Ethernet audio interfaces
When operating Monitor 8 as an AVB Ethernet
audio interface (“AVB Ethernet audio interface setup” on page 32), multiple AVB audio interfaces
can be connected using a MOTU AVB Switch (or any 3rd-party AVB switch), and the Mac can see all of them through their AVB connection. For example, you could connect an Avid S3 console to the Mac, and then connect a MOTU Monitor 8 to the S3’s extra network port (which is a built-in switch). The Mac can see both Monitor 8 and S3 for audio I/O. However, OS X takes over each device for exclusive use, so they can only stream audio to and from the Mac, not each other. The same is true for all AVB devices connected to the
Mac. See “Syncing multiple AVB audio interfaces connected to a Mac” on page 40.
Mixing and matching audio interfaces
You can mix and match MOTU audio interface models. For example, you could connect a 1248 through Thunderbolt and another MOTU audio interface, such as a Monitor 8, through USB 2.0.
35
H A R D W A R E I N S T A L L A T I O N
36
SETUP FOR WEB APP CONTROL
The MOTU AVB Control web app gives you access to all settings, routing, mixing, and effects processing the Monitor 8, and each interface on the
AVB network, if applicable. For more info, see
“MOTU AVB Control Web App” on page 11.
The web app is a web application served by the hardware. All you need to run it is a web browser running on a device that has a connection to your audio interface through USB or a shared network.
Web app
Web app in your browser
Figure 4-1: The web app is served from the hardware, and accessed through any web browser on any device connected to the interface.
Web app control can be set up independently of audio connections
The connections in this section, especially the network scenarios, can be set up independently of
USB or AVB networking connections you make for audio routing (as shown in the setup diagrams earlier in this chapter). In addition, connections for web app control can be made over standard
Ethernet and do not require AVB Ethernet connections. Think of web app control as being separate from audio. Doing so opens up a lot of possibilities for control of the Monitor 8, independent of the connections you make for audio.
Mixing and matching web app control scenarios
The web app connection scenarios shown in the following sections are not exclusive from one another. You can set up as many web app connections as you wish and control your MOTU device from many web app hosts simultaneously.
Launching the web app
Once you’ve made any of the connections shown in the following sections, launch the web app as
explained in “Make hardware and network connections” on page 11.
Web app control over USB or Thunderbolt
If the Monitor 8 is connected through USB to a computer with internet access (as shown on
page 31), you can access the web app from the
computer, or any other device on the network. In this case, make sure you’ve run the software
installer (page 27), which installs drivers that allow
your computer to properly communicate with the device.
Web app control through standard Ethernet
The Monitor 8 can also be controlled by the web app running on any device that has a standard
Ethernet connection to the interface, either directly with a network cable, through an Ethernet hub, or through Wi-Fi on your local network. The sections on the opposite page show you how to set up each of these connection scenarios.
H A R D W A R E I N S T A L L A T I O N
Ethernet cable
A simple Ethernet cable connection can be used for web app control, even without a USB or
Thunderbolt connection to your computer. For example, if you are using your MOTU device as a mixer or audio router, you could control the on-board routing, mixing and effects from the web app through a standard Ethernet connection.
Wi-Fi
When using standard Wi-Fi as shown, you can control the Monitor 8 from multiple Wi-Fi devices simultaneously.
Laptop (optional) Tablet Smart phone
Wi-Fi devices
Network port
Standard Ethernet cable
Ethernet cable
Airport or any other Wi-Fi router
Network port
Network port
Figure 4-2: Web app control through a simple Ethernet cable.
Ethernet hub or network (LAN)
In this scenario, both your laptop and your MOTU device are connected to a standard Ethernet hub or home/office network (LAN). You can run the web app on multiple computers simultaneously.
Standard Ethernet hub or network (LAN)
Network port
Figure 4-4: Web app control through Wi-Fi.
Ethernet network + Wi-Fi
You can, of course, combine the setups shown in
Figure 4-3 and Figure 4-4, with Wi-Fi connected to
the Ethernet hub or network.
MOTU AVB Switch
The MOTU AVB Switch provides five AVB
Ethernet ports, plus one standard Ethernet port.
Use the AVB ports for MOTU audio interfaces, and use the Ethernet port for Wi-Fi, Ethernet, etc.
Ethernet cables
MOTU AVB interfaces
Network port
Wi-Fi router or
Ethernet hub/network
Figure 4-3: Web app control through a standard Ethernet hub or network (LAN).
(Sold separately)
Figure 4-5: Using the Ethernet port on the MOTU AVB Switch.
37
H A R D W A R E I N S T A L L A T I O N
A TYPICAL MONITOR 8 SETUP
Here is a typical Monitor 8 setup. This rig can be operated with or without a separate mixer. All mixing and effects processing can be done in the
Monitor 8 itself, controlled from your laptop, tablet, and smart phone — or several devices simultaneously.
A1 B1 C1 D1 E1 F1
Monitor 8 front panel
16 channels of
ADAT optical
F2
Main mixer
In-ear transmitters
D
E2 D2 C2
C
B2
B
A2
A
38
Monitor 8 back panel
Ethernet cable to another
MOTU AVB device, a
MOTU AVB Switch, or Wi-
Fi router, etc.
MOTU
AVB
Switch
USB
F
E
B
A quarter-inch analog outs
Airport or other wireless router
Laptop
Tablets and smartphones
Primary monitors/PA
D
C synths, samplers, effects units, etc.
quarter-inch analog outs
Secondary monitors/PA
Keyboard
Figure 4-6: A typical Monitor 8 studio or stage setup.
H A R D W A R E I N S T A L L A T I O N
AUDIO CONNECTIONS
Here are a few things to keep in mind as you are making audio connections to your Monitor 8 interface.
Analog trims
All quarter-inch analog inputs and outputs can be trimmed. This allows them to support a variety of standards, including EBU-R68, SMPTE RP-155,
+4dBu, -10dBV, 2vRMS, 1vRMS.
Monitor 8 analog inputs are equipped with highquality, digitally controlled analog trim that provides a range from -96 to +22 dB in 1dB steps.
Trim controls are most easily accessed in the web
app. See “Device tab” on page 12. Trim settings can
also be accessed in the LCD menu.
Optical
Monitor 8 provides two banks of ADAT optical
(“lightpipe”) input. Together, they provide 16 channels of ADAT optical digital input at 44.1 or 48 kHz, or 8 channels at 88.2 or 96 kHz. The optical ports are disabled when the interface is operating at a 176.4 or 192 kHz. At the 2x sample rates (88.2 or
96 kHz), 4-channel SMUX operation supports two
â–
Standard — for 2x optical connection to
3rd-party SMUX-compatible hardware products.
â–
Type II (Legacy) — for 2x optical connection to legacy MOTU products that are equipped with optical ports and support 2x operation.
The optical ports are disabled when the interface is operating at a 176.4 or 192 kHz.
TOSLink (optical S/PDIF)
Alternately, the optical ports can be configured for stereo TOSLink (optical S/PDIF) in the web app
(item #24 on page 13). The optical IN and OUT
banks can be configured independently.
Choosing a clock source for optical connections
When connecting an
optical device, make sure that its digital audio clock is phase-locked (in sync with) the Monitor 8. Once the optical connection is made, choose the connected
Optical bank as the
clock source (page 12). Be sure to choose the bank
that the device is connected to.
SYNCING AN AVB NETWORK
The AVB protocol provides sophisticated and accurate timing, synchronization, and clocking features for AVB device networks of any size as
shown on pages 33-34, including:
â–
Low latency
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Network-wide time base
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Better-than-sample-accurate phase lock across all connected devices
â–
Timing accuracy down to the nanosecond
Choosing a master clock
The web app provides an easy way to choose one device as the master clock for your whole MOTU
AVB network.
1
Go to the Devices tab (page 12).
2
In the device list (item #1 on page 12), choose
the MOTU interface you wish to use as the clock master.
3
Click the
Become Clock Master button below the
Clock Mode menu.
Now, all other MOTU AVB devices on the network are resolved to this device.
39
H A R D W A R E I N S T A L L A T I O N
40
Figure 4-7: Choosing a clock master.
Alternately, you can go to the clock mode menu for each individual device separately and choose the master clock device by hand. For example, you may be in a situation where at least one MOTU device on the network must remain resolved to its own clock (or another clock source). Just know that in this case, audio cannot be streamed between
MOTU AVB devices that don’t share the same master clock.
Resolving the master clock device to an external clock source
The MOTU device you’ve specified as the AVB network clock master can itself be resolved to an external time base such as word clock (if available) or optical. Just choose the desired clock source from its Clock Mode menu (in the Device tab).
Doing so effectively resolves the entire AVB network to the external clock source.
SYNCING MULTIPLE AVB AUDIO
INTERFACES CONNECTED TO A MAC
There are several options for clocking multiple
AVB audio devices connected to the Mac:
â–
You can resolve them to an external clock source
(like word clock, if available).
â–
You can create an aggregate device, as usual. The aggregate device setup panel has a check box called
Drift Correction, which sample-rate converts devices that are not synchronized.
H A R D W A R E I N S T A L L A T I O N
Part 2
Using the
Monitor 8
CHAPTER 5
Presets
OVERVIEW
Because of its advanced, extensive feature set, the
Monitor 8 can be used for many different purposes. This chapter discusses common use cases and their corresponding device presets, to help you use the hardware for your needs.
Preset menu
The preset menu (item #7 on page 12) contains a
number of presets specifically designed for common use cases. By loading the corresponding preset, the Monitor 8 routing tab and mixer will be reconfigured accordingly. You can visit the Routing and Mixing tabs to inspect settings and adjust them as needed.
Audio interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Stand-alone mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Interface + mixer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Live recording with monitor mixing . . . . . . . . . . . . . . . . . 45
Stage I/O with mixing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Studio input expander. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Studio output expander . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Optical converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Optical converter with mixing . . . . . . . . . . . . . . . . . . . . . . . 46
Create your own presets
You can create presets to suit your specific needs.
Your MOTU device is highly capable and configurable, allowing it to perform many tasks simultaneously.
Video tutorials
To view several excellent video tutorials for the presets described in this chapter, visit:
www.motu.com/avb
AUDIO INTERFACE
Choose the
Audio Interface preset to use the
Monitor 8 as a standard USB audio interface.
Hardware inputs and outputs are accessible from your computer, and the mixer and audio networking features are disabled.
audio connections to audio gear
Figure 5-1: Using your MOTU AVB device as an audio interface.
43
44
STAND-ALONE MIXER
Choose the
Stand-alone mixer preset to use
Monitor 8 as a mixer. Doing so routes all physical inputs to the mixer, with the mixer’s main mix bus and monitor bus going to the Main Out and Aux
Out pairs. In addition, all inputs are fed to each Aux bus pair (1-2, 3-4, etc.), which are in turn routed to the six monitor groups A-F. This means that each aux bus can serve as its own independent monitor mix, with access to any/all inputs.
To control the mixer (with the AVB Control web app), you have several options. You can connect a computer to your MOTU AVB device using USB,
Ethernet, or Wi-Fi, as explained in “Setup for web
app control” on page 36. Figure 5-2 below shows
the Wi-Fi scenario. Note that you can control the mix from multiple Wi-Fi devices.
Laptop (optional) Tablet Smart phone
INTERFACE + MIXER
Choose the
Interface + Mixer preset to use
Monitor 8 as both an audio interface and mixer, simultaneously. Doing so routes all physical inputs and outputs to and from the computer, connected through USB or AVB Ethernet. In addition, the following audio sources are routed to the mixer, which mixes them to the Main Mix bus, plus six stereo aux busses for independent monitor mixes:
â–
The Monitor 8’s eight analog inputs
â–
The Monitor 8’s sixteen (or eight) ADAT inputs
â–
Eight USB channels from the host computer
The Monitor bus is set up as a solo bus.
In this scenario, you can control the mixer from the
MOTU AVB Control web app running on the computer. You can also run the web app from wireless devices on the same Wi-Fi network as the laptop.
Laptop
Wi-Fi devices
Main
Mix
Aux
Mix
Group
Mix 1
Group
Mix 2
Ethernet cable
Airport or any other Wi-Fi router
Main
Mix
Aux
Mix 1
Aux
Mix 2
Local inputs plus network inputs
Figure 5-2: Using Monitor 8 as a stand-alone mixer. This example demonstrates how you can control the mixer from several Wi-Fi devices.
Audio inputs from stage, studio, etc.
Figure 5-3: Using Monitor 8 as an audio interface and mixer, simultaneously.
P R E S E T S
LIVE RECORDING WITH MONITOR MIXING
Choose the
Live recording with monitor mixing preset when you are tracking in the studio. The
setup is pretty much the same as for the “Interface
+ mixer” preset shown in Figure 5-3 on page 44.
All physical inputs on the interface are routed to both the computer (for recording) and the Main
Mix and Monitor busses in the mixer (for nearzero latency monitoring). Eight USB channels from the computer are included in the Monitor 8’s mix. As with the other presets, six aux busses are routed to the Monitor 8’s six monitor group outputs, for independent monitor mixes.
STAGE I/O
Use the Stage I/O preset when you want to connect the inputs and outputs on the Monitor 8 to other devices over Ethernet cabling. This preset routes all inputs and outputs on the Monitor 8 interface to
8-channel AVB network streams in the routing grid, which are then broadcast to any/all other devices on the same AVB Ethernet network.
STAGE I/O WITH MIXING
The
Stage I/O with mixing preset routes audio to and from other devices over Ethernet cabling.
However, instead of routing incoming network audio directly to the Monitor 8’s outputs, this preset routes the incoming network audio to the mixer. The mixer then distributes eight separate mixes to the Monitor 8’s eight output groups
(main, aux and monitor groups A-F).
For example, you could have a single Ethernet cable running from a Monitor 8 on stage to a 24Ai connected to the Front of House (FOH) mixer. You could then send 24 channels of FOH to the
Monitor 8, which could then supply eight independent monitor mixes to musicians on stage.
Analog inputs from FOH mixing console
Ethernet cable
Monitor mixes to musicians on stage
24Ai
Monitor 8
FOH mix position
Laptop (optional)
Stage area
Each musician controls their own monitor mix over Wi-Fi
Figure 5-4: An example of using the Stage I/O preset: 24 channels from the FOH console are being distributed to musicians on stage as
8 separate monitor mixes. Monitor groups A-F supply multiple mirrored outputs to headphones, stage monitors, and in-ear transmitters.
45
P R E S E T S
46
STUDIO INPUT EXPANDER
Use the
Studio Input Expander preset when you already have a main system set up, but you want to add additional inputs. This preset routes all physical inputs (analog and digital) on the
Monitor 8 to AVB network streams. You can connect to the Monitor 8’s network streams in the
AVB Stream Connections section of the Device tab
of the main MOTU AVB interface (item #20 on
STUDIO OUTPUT EXPANDER
Use the
Studio Output Expander preset when you already have a main system set up, but you want to add additional outputs. This preset routes AVB network streams to all physical outputs (analog and digital) on the Monitor 8. You must then choose which network streams you wish to send to the Monitor 8’s outputs. To do so, go to the AVB
Stream Connections section of the Device tab for
the Monitor 8 (item #20 on page 12).
OPTICAL CONVERTER
Choose the Optical converter preset if you would like the Monitor 8 to serve as a multi-channel digital-to-analog converter connected to another device equipped with an ADAT optical port.
For example, if you have another MOTU interface equipped with optical, you could connect its optical output banks to the Monitor 8’s optical input banks. The Monitor 8 then serves as a
16-channel expander that adds all of the
Monitor 8’s analog outputs to your setup.
Optical cable
Analog outputs
Other interface
Monitor 8
Figure 5-5: Use the Optical converter preset to use the Monitor 8 as an optical-to-analog expander.
OPTICAL CONVERTER WITH MIXING
The
Optical converter with mixing preset does not route incoming optical audio directly to the
Monitor 8’s analog outputs. Instead, this preset routes the incoming optical audio to the mixer. The mixer then distributes eight separate mixes to the
Monitor 8’s eight output groups (main, aux and monitor groups A-F).
P R E S E T S
CHAPTER 6
The Front Panel LCD
OVERVIEW
The front panel LCD displays level meters for all inputs and outputs. The LCD also provides several navigable menus that provide status information and basic hardware settings.
Level meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Push-button Knobs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Channel focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Menu Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Device menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Network menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Settings menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Presets menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Version menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
ADAT SMUX Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Stand-alone operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
LEVEL METERS
In its default state when the unit is first powered on, the LCD displays level meter activity for all physical audio inputs and outputs on the device.
The meters display from -42dBFS to 0dBFS, as shown by the labels to the left of the LCD display
(Figure 6-1).
Figure 6-1: V-Limit compressor on the 8M interface.
PUSH-BUTTON KNOBS
The front-panel knobs (Figure 6-2) are pushbutton digital rotary encoders. Push the knob for the function labeled in blue.
Figure 6-2: Push the knob to activate the functions labeled in blue.
Muting outputs
Push any knob to mute (and unmute) the output
(or output group).
To mute or unmute Groups D, E or F (which have blue labels), turn the knob first and then push it while the LCD is focused on the output volume setting for the knob.
CHANNEL FOCUS
When turning a knob to adjust volume, the LCD shows the output volume setting. A few seconds after you stop turning the knob, the LCD returns to the previous display.
ID
Push ID (Figure 6-2) to immediately view the device’s network information, including its IP
Address. Push BACK to return to the meters.
MENU NAVIGATION
Push SELECT to access the main menu, which provides settings and status information.
Main Menu
Turn the SELECT knob to scroll through the menu settings on the left side of the LCD.
Push SELECT to enter the selected sub-menu
(column of options to the right) or to select the currently highlighted parameter.
Push BACK to go to the parent menu.
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48
To exit the menu entirely, push BACK repeatedly until the menu disappears from the display.
Device menu
The Device menu provides information about the device, such as its name and connection mode
(USB or AVB).
Network menu
The Network menu displays the following network-related information:
Setting
Serial/UID
IP address
AVB
Explanation
Unique AVB network identifier that can be used for troubleshooting.
The unique network address for the unit.
Type this address into your web browser to access the unit’s settings in the MOTU
AVB Control web app.
Indicates whether AVB networking is currently enabled or disabled. For example,
AVB could be disabled because a non-AVB switch is being used. When AVB is disabled, audio streaming over the network is disabled.
Settings menu
The Settings menu provides access to basic hardware settings, such as Clock Mode, Sample
Rate, and so on.
Setting
Clock Mode
Sample Rate
Optical
Configure IP
LCD Contrast
Factory Defaults
What it does
Sets the digital audio clock source for the device.
Sets the sample rate for the device.
Specifies the SMUX format when operat-
ing at 88.2 or 96 kHz. See “ADAT SMUX
Chooses between DHCP and a manually assigned IP Address.
Adjusts the contrast of the LCD.
Restores factory default settings.
Presets menu
The Presets menu lets you recall settings that have been saved as a device preset. Use the web app to
create and save presets (item #7 in the “Device tab” on page 12).
Version menu
The Version menu displays firmware version information.
CLOCK
The Clock section of the LCD displays the sample rate at which the unit is currently operating, and
the current Clock Mode setting (item #13 in the
Devices tab on page 12). The Clock Mode setting
can also be found (and changed) in the Settings
Menu.
ADAT SMUX TYPE
When the Monitor 8 is operating at either 88.2 or
96 kHz, the Settings menu > Optical setting lets you configure ADAT SMUX type. There are two choices:
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Type I (standard) — for 3rd-party SMUXcompatible hardware products, including currentgeneration (and recent-generation) MOTU interfaces
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Type II — for older, legacy MOTU interfaces
STAND-ALONE OPERATION
All settings, including mix settings and device settings, are saved in the Monitor 8’s memory. They remain in effect even when the interface is not connected to a computer. This allows you to use your MOTU device as a stand-alone mixer. You can make adjustments to any setting at any time from the web app running on a device that has a network connection to the Monitor 8, as explained in
“Setup for web app control” on page 36.
T H E F R O N T P A N E L L C D
CHAPTER 7
Working with Host Audio Software
OVERVIEW
The Monitor 8 provides multi-channel audio input and output for Core Audio compatible audio applications on the Mac and ASIO or Wave compatible applications on Windows, including
MOTU’s Digital Performer and AudioDesk,
Apple’s Logic Pro and GarageBand, and other third-party software applications such as Ableton
Live, Avid Pro Tools, Cockos Reaper, Propellerhead
Reason and Record, Steinberg Cubase and
Nuendo, Cakewalk SONAR, PreSonus Studio One,
Bitwig, and others.
AudioDesk is available as a free download for
Monitor 8 owners at motu.com/avb. For complete information about all of AudioDesk’s powerful workstation features, refer to the
AudioDesk User
Guide.pdf included in the AudioDesk application.
Digital Performer, MOTU’s state-of-the-art digital audio workstation software, is available separately; for details about upgrading from AudioDesk to
Digital Performer, talk to your authorized MOTU dealer or visit motu.com.
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Run the web app. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Choosing the MOTU AVB Audio driver. . . . . . . . . . . . . . . 52
Reducing monitoring latency. . . . . . . . . . . . . . . . . . . . . . . . 53
Working with on-board mixing and effects . . . . . . . . . . 55
PREPARATION
Install your host audio software first if you haven’t already done so, and complete these chapters before proceeding:
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chapter 3, “Software Installation” (page 27)
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chapter 4, “Hardware Installation” (page 31)
RUN THE WEB APP
Before you run your host audio software, launch the web app to configure your MOTU hardware.
The web app lets you configure important settings in your audio interface, enable the desired inputs and outputs, and set up audio streams to and from the computer.
Sample rate
Choose the desired sample rate for the Monitor 8 and your host audio software. Newly recorded audio will have this sample rate.
Clock Mode
This setting is important because it determines the master digital audio clock for your system.
If you do not have any digital audio connections to your MOTU device (you are using the analog inputs and outputs only), and you will not be resolving your host software to optical or another external clock source, choose Internal.
If you have devices connected to the optical ports,
see “Choosing a clock source for optical connections” on page 39.
Enabling and disabling input/output banks
In the web app Device tab (page 13), enable all
input and output banks on your MOTU device that you wish to make available to your host audio software. Disable banks you are not using to simplify operation.
49
Specifying the number of computer channels
In the web app Device tab (page 13), in the
Computer Setup section, specify the number of computer channels for streaming audio to and from your host audio software. You might want enough channels to cover the following:
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Physical inputs you want to record on your computer.
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The physical outputs you want to send audio playback to.
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Any audio streams going to and from the on-board mixer in the Monitor 8.
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Any audio streams going to and from the AVB network, if you have multiple networked MOTU
AVB devices.
If you aren’t sure how many channels you’ll need, visit the Routing tab, as explained below.
Making inputs and outputs available to your host software
In the web app, use the Routing tab (page 14) to
map inputs and outputs to computer channels, as demonstrated in Figure 7-1 and Figure 7-2.
Configuration presets
The presets menu (item #7 in the Devices tab on page 12) provides many useful presets for various
host routing scenarios. These presets are a convenient shortcut for the routing grid setups discussed in the next few sections.
Naming computer input and output channels
Click on any computer input or output name in the routing grid (Figure 7-1) to change its name.
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Figure 7-1: An example of routing computer channels (from host audio software) to the analog outputs on a Monitor 8.
Computer channels 1-2 are being split to two pairs of outputs: Main 1-2 and Aux 1-2.
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Streaming computer audio to and from the on-board mixer
In Figure 7-1, you’ll see mixer inputs across the top of the grid (Main, Monitor, Aux, etc.) These are output busses from the Monitor 8’s on-board mixer. To route one of these mix busses to your host computer software, click the grid at the intersection of the mix column and desired computer channel row. Now, the mix bus output will be routed to the computer via the channel you selected.
Conversely, you can stream audio from the computer into the mixer. Channels coming from the computer are represented across the top of the routing grid as inputs. To route a computer channel to the mixer, click the grid at the intersection of the computer channel column and the desired mix input row. Now, that computer channel will be routed to the mixer input.
Figure 7-2: An example of routing physical inputs on the Monitor 8 to computer channels (for host audio software).
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51
Working with AVB network streams
Audio channels going to networked AVB interfaces can be streamed to and from your host audio software through the MOTU interface connected directly to the computer. For information about
how to set this up, see “Mapping computer channels to network streams” on page 67.
Mirroring computer channels to multiple outputs
Figure 7-1 shows an example of mirroring one stereo audio stream from host audio software to several outputs. In the example, computer channels 1-2 are being sent to Main 1-2 and Aux
1-2. To route an input to multiple outputs, click multiple boxes in its column, (see computer channels 1-2 in Figure 7-1).
Combining multiple inputs to one output
To merge (mix) any channels in the grid (computer streams or otherwise), route them to mixer inputs
and then use the on-board mixer (“Mixing tab” on page 15).
Routing grid tutorials
For further information about using the routing grid, including many useful tips and techniques, visit:
www.motu.com/techsupport/technotes/avbrouting and www.motu.com/avb
CHOOSING THE MOTU AVB AUDIO DRIVER
Once you’ve made the preparations described so far in this chapter, you’re ready to run your audio software and enable the MOTU AVB audio driver, which allows your host software to use the
Monitor 8 as an audio interface.
52
For Mac OS X audio software
For audio software running under Mac OS X, go to the menu item or preference where you choose the audio device (Core Audio driver) you wish to use, and then select the Monitor 8 by name.
For Windows audio software
For audio software running under Windows, go to the menu item or preference where you choose the
ASIO driver you wish to use, and then choose
MOTU AVB USB ASIO. If your host audio software doesn’t support ASIO, choose the
MOTU AVB USB
AUDIO Wave driver instead.
Figure 7-3: Choosing the MOTU AVB ASIO driver in Cubase.
Where to go in popular audio hosts
Here is the location for this setting in various popular audio software host applications:
Host software
Digital Performer and AudioDesk
Location for choosing the Monitor 8
Setup menu > Configure Audio System >
Configure Hardware Driver
Pro Tools 9 or later Setup menu > Playback Engine or Current
Engine
Logic Pro Preferences > Audio tab > Devices tab >
Core Audio tab
Garage Band
Cubase and
Nuendo
Live
Garage Band menu > Preferences > Audio/
MIDI > Audio Output/Input menus
Device Setup > Devices list > VST Audio
System menu
Preferences > Audio tab
Reason
Reaper
Preferences > Audio preferences
Preferences > Audio prefs > Devices
Other audio software
Consult your software’s manual for further information.
W O R K I N G W I T H H O S T A U D I O S O F T W A R E
REDUCING MONITORING LATENCY
Monitoring latency is a slight delay caused by running an input signal through your host audio software and back out. For example, you might hear it when you drive a live guitar input signal through an amp modeling plug-in running in your audio sequencer.
This delay is caused by the amount of time it takes for audio to make the entire round trip through your computer, from when it first enters an input on the Monitor 8, passes through the interface hardware into the computer, through your host audio software, and then back out to an output.
Monitoring through the Monitor 8
If you don’t need to process a live input with plug-ins, the easiest way to avoid monitoring latency is to disable your DAW’s live monitoring feature and instead use the digital mixer in the
Monitor 8 to route the input directly to your
outputs. For details, see “Mixing tab” on page 15.
The mixer in the Monitor 8 even provides zero latency effects processing (EQ, compression and reverb), which can be applied to the signal.
Direct hardware playthrough / Direct ASIO monitoring
When managing your live monitor mix through the Monitor 8 mixer, remember to disable your
DAW’s live monitoring features, so that you won’t hear record-enabled tracks in your DAW. Also note that the Monitor 8 does not support
Direct
Hardware Playthrough in Digital Performer, or the
Direct ASIO Monitoring feature (or similar) offered and other DAWs, which lets you control no-latency hardware monitoring from within the host application. Instead, you can use the MOTU AVB
Control web app mixer (“Mixing tab” on page 15)
to make these live monitoring connections manually.
If you don’t require any effects processing on the input signal (no reverb or compression, for example), all this takes is one click in the routing grid to route the input being recorded to the output you are using for monitoring.
If you are recording a mono input that you’d like to monitor in stereo, or if you need to apply effects to the monitored signal, you can simply route the input to the mixer in the Monitor 8. This is done by opening the Mix In group in the Outputs column along the left side of the grid, and clicking the tile at the intersection of the input’s column and the desired mixer input’s row. Once routed to the mixer, use the input channel, reverb bus, and monitor bus in the mixer to apply effects as desired, and perhaps include other channels to the mix, and then assign the monitor bus output in the routing grid to the output you are using for monitoring.
In either case (routing directly in the grid or routing through the mixer), be sure to maintain the input’s connection to the computer as well, so the input signal can be recorded in your host software.
In other words, you’ll want to make sure there are two tiles enabled in the input’s column in the grid: one tile for the connection to the computer and another tile for your monitoring output (or a mixer input, if you are using the mixer to apply effects). If you need to route the input signal to other destinations, too, you can certainly do so (you can route the input to multiple destinations).
Monitoring through your host audio software
If you do need to process a live input with host software plug-ins, or if you are playing virtual instruments live through your MOTU audio hardware, you can significantly reduce latency by adjusting the audio buffer setting in your host audio software, as explained in the next section.
☛
It is important to note that monitoring delay has no effect on the recording, or playback, of audio data from disk. The actual recording and
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W O R K I N G W I T H H O S T A U D I O S O F T W A R E
playback is extremely precise, it is only the monitoring of your live input signal which may be delayed.
Adjusting your host software audio buffer
Buffers are small bundles of audio data. The
Monitor 8 “speaks” to your computer in buffers, rather than one sample at a time. The size of these buffers determine how much delay you hear when monitoring live inputs through your audio software: larger buffers produce more delay; smaller buffers produce less.
Adjusting buffer size on Mac OS X
Under Mac OS X, audio I/O buffer size is handled by the host audio application (not by the
Monitor 8’s Core Audio driver). Most audio software applications provide an adjustable audio buffer setting that lets you control the amount of delay you’ll hear when monitoring live inputs or processing them with software plug-ins. Here are a few examples.
Figure 7-5: In Cubase or Nuendo, choose Devices menu > Device
Setup. Select your interface (Monitor 8), then click the Control Panel button to access the window above and the Buffer Size setting.
54
Figure 7-4: In Digital Performer and AudioDesk, choose Setup menu>
Configure Audio System> Configure Hardware Driver to open the dialog shown above and access the Buffer Size setting. Refer to your
Digital Performer or AudioDesk manual for information about the
Host Buffer Multiplier setting.
Figure 7-6: In Logic Pro, go to the Audio Driver preferences to access the Buffer Size option shown above.
Adjusting buffer size on Windows
To adjust buffer size on Windows, visit the MOTU
AVB USB Control Panel. See “MOTU AVB USB
Lower latency versus higher CPU overhead
Buffer size has a large impact on the following:
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Monitoring latency
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The load on your computer’s CPU
W O R K I N G W I T H H O S T A U D I O S O F T W A R E
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Responsiveness of transport controls and effect knobs in AudioDesk, Digital Performer or other audio software.
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Real-time virtual instrument latency.
The buffer setting presents you with a trade-off between the processing power of your computer and the delay of live audio as it is being patched through your software. If you reduce the size, you reduce monitoring latency, but significantly increase the overall processing load on your computer, leaving less CPU bandwidth for things like real-time effects processing. On the other hand, if you increase the buffer size, you reduce the load on your computer, freeing up bandwidth for effects, mixing and other real-time operations.
Effects processing and automated mixing
Reducing latency with the buffer size setting has another benefit: it lets you route live inputs through the real-time effects processing and mix automation of your audio software.
WORKING WITH ON-BOARD MIXING AND
EFFECTS
The Monitor 8 provides powerful mixing, EQ, compression and reverb, which can operate handin-hand with your host’s mixing environment. For example, the Monitor 8 can serve as a monitor mixer, routing channels to musicians, or it can serve as an integrated extension of your host’s mixing environment. You can even save a particular mixing configuration as a preset for
future recall. For details, see “Mixing tab” on page 15.
Figure 7-7: When adjusting the buffer size to reduce monitoring latency, watch the ‘processor’ meter in Digital Performer or
AudioDesk’s Performance Monitor. If you hear distortion, or if the
Performance meter is peaking, try raising the buffer size.
If you are at a point in your recording project where you are not currently working with live, patchedthru material (e.g. you’re not recording vocals), or if you have a way of externally processing inputs, choose a higher buffer size. Depending on your computer’s CPU speed, you might find that settings in the middle work best (256 to 1024).
Transport responsiveness
Buffer size also impacts how quickly your audio software will respond when you begin playback, although not by amounts that are very noticeable.
Lowering the buffer size will make your software respond faster; raising the buffer size will make it a little bit slower.
W O R K I N G W I T H H O S T A U D I O S O F T W A R E
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W O R K I N G W I T H H O S T A U D I O S O F T W A R E
CHAPTER 8
Mixer Effects
OVERVIEW
This chapter provides further information about the effects processors available in the DSP mixer in the Monitor 8. For basic mixer operation, see:
Mixing tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Aux Mixing tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mixer input channel strips . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Main Mix and Monitor channel strips . . . . . . . . . . . . . . . . 18
Aux bus channel strips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Group and Reverb channel strips . . . . . . . . . . . . . . . . . . . . 20
Powerful DSP-driven mixing and effects
The mixer is driven by a powerful DSP that delivers
32-bit floating point precision and plenty of processing bandwidth for no-latency effects, including parametric EQ, dynamics, and reverb.
Effects can be applied when operating as an audio interface or as a stand-alone mixer without a computer. Input signals to the computer can be recorded wet and/or dry, or recorded dry while a real-time wet monitor mix is sent to musicians.
Effects include:
High Pass Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
A conventional high pass filter
A standard gate with threshold/attack/release controls
Four-band parametric EQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Multi-band parametric EQ modeled after British analog consoles
Compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
A standard compressor with threshold/ratio/ attack/release/gain controls
The Leveler™, an accurate model of the legendary
LA-2A optical compressor, which provides vintage, musical automatic gain control
Classic reverb with tail lengths up to 60 seconds
Advantages over host-based mixing and processing
The hardware mixer in the Monitor 8 provides several major advantages over mixing and processing in your host audio software:
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No buffer latency. The DSP-mixer provides the same near-zero latency throughput performance as a conventional digital mixer. Effects processing doesn’t impact your computer’s CPU.
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DSP mixing and routing can be maintained independently of individual software applications or projects.
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DSP-driven mixing can function without the computer, allowing your MOTU AVB device to operate as a portable, stand-alone mixer with effects.
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Effects are disabled when operating at 4x sample rates (176.4 or 192 kHz).
HIGH PASS FILTER
All input channel strips provide a 12 dB per octave high pass filter. High Pass filters are often used to remove unwanted mic rumble, for example.
Figure 8-1: The High Pass Filter.
57
GATE
All input channel strips provide a Gate module.
Enabling EQ
Each band has an
enable/disable button
(Figure 8-3), allowing you to enable as few or as many bands as needed for the channel strip.
58
Figure 8-2: The Gate module.
The gate silences the signal when the input signal’s level drops below the Threshold.
The rate at which the gate responds, (opens to let signal through) is determined by the
Attack parameter. With a short Attack time, the gate will open as soon as the signal crosses the Threshold; with longer Attack times, the gate will gradually open, much like a fade-in.
When the input level falls back below the
Threshold, the time it takes for the gate to close
(how quickly the signal is attenuated), is determined by the
Release parameter. Short
Release times will close the gate quickly, abruptly attenuating your signal, versus longer release times, which will gradually attenuate your signal, like a natural fade-out.
FOUR-BAND PARAMETRIC EQ
All mixer channel strips, (except for the Monitor bus), provide modeled, four-band parametric EQ.
Vintage EQ
Inspired by legendary British large console EQs, the
EQ section (Figure 8-3) models the sound of the most sought-after classic equalizers. Four bands of center frequency parametric EQ filtering are provided, each with a bandwidth control. The
High and Low bands include a shelf filtering option. With 32-bit floating point precision, the vintage EQ has been carefully crafted and meticulously engineered to produce musical results in a wide variety of applications.
Enable/disable
Disabled band
Figure 8-3: The Four-band parametric EQ module.
EQ filter controls
The EQ filters have three controls:
Control
Gain
Frequency
Bandwidth
unit
dB
Hertz
Octaves
range
-20.00 to +20.00
20 to 20,000
0.01 to 3.00
Double-click a knob to return to its default position.
EQ filter characteristics
EQ is one of the most widely used processing tools and can be applied to many different situations, from minor corrective tasks to creative tone sculpting. The four-band EQ has been designed to
M I X E R E F F E C T S
be flexible enough to cover a broad range of applications. By adjusting Gain and Bandwidth together, you can emulate the smooth and musical character of classic analog EQ circuits, in which the
Gain/Bandwidth dependency was dictated by the actual circuit design and electrical components used.
Low and high shelf filters
The Low and High bands offer a shelf option that is similar to those found in most conventional parametric EQs.
COMPRESSOR
All mixer input channel strips provide a compressor module.
Figure 8-4: The Compressor module.
The
Compressor (Figure 8-4) lowers the level of the
input when amplitude of the signal is above the
Threshold. The amount of attenuation is determined by the
Ratio and the input level. For example, if the input is 6 dB above the
Threshold and the Ratio is 3:1, the compressor will attenuate the signal to 2 dB above the Threshold. When the input level goes above the threshold, the attenuation is added gradually to reduce distortion.
The rate at which the attenuation is added is determined by the Attack parameter. Likewise, when the input level falls below the Threshold, the attenuation is removed gradually. The rate at which the attenuation is removed is determined by the
Release parameter. Long Release times may cause the audio to drop out briefly when a soft passage follows a loud passage. Short Release times may cause the attenuation to “pump”, a term used to describe the sound of the compressor when the average input level quickly fluctuates above and below the Threshold. These types of issues can be addressed by adjusting the compressor’s parameters, or applying the Leveler instead.
Gain adjusts the overall output level of the compressor, post processing. The Level
shows the level of the input signal entering the compressor. It shows either the Peak envelope or the RMS level, if enabled.
Gain reduction meter
The Gain reduction meter (Figure 8-4) displays the
current amount of attenuation applied by the compressor, before the makeup gain stage.
RMS mode
By default, the compressor operates in Peak mode, which uses signal peaks to determine the input level. In RMS
mode, the compressor measures the input signal’s loudness, using the root-meansquare computational method. When RMS is disabled, RMS mode will let brief peaks through because the detector sidechain is only looking at the average signal level. By contrast, peak mode will catch those brief peaks. Peak mode is generally used for drums, percussion and other source material with strong transients, while RMS mode is mostly used for everything else.
The level meter shows either the peak level or the
RMS level, depending on the mode.
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60
LEVELER
The Leveler™ (Figure 8-5) provides an accurate model of the legendary Teletronix™ LA-2A® optical compressor, known for its unique and highly sought-after Automatic Gain Control
(AGC) characteristics.
Figure 8-5: The Leveler module.
The Leveler is available on the Main Mix bus and all Group busses, including the Reverb bus.
A model of an optical compressor
An optical leveling amplifier works by shining a light on a photoresistor. The intensity of the light source is proportional to the audio signal, and the resistance of the photoresistor is in turn inversely proportional to the intensity of the light. Photoresistors respond quite quickly to increases in light intensity, yet return to their dark resistance very slowly. Thus, incorporation of the photoresistor into an attenuator followed by an amplifier which provides make-up gain produces a signal which maintains a constant overall loudness.
Automatic gain control using light
The AGC circuit of the LA-2A uses a vintage optocoupler known by its model number T4. The T4 contains an electroluminescent-panel (ELP) and photoresistor mounted so that the emission of the panel modulates the resistance. An ELP consists of a thin layer of phosphorescent material sandwiched between two insulated electrodes to form a capacitor. Making one of the electrodes transparent allows the light to escape. These devices are essentially glow-in-the-dark paint on a piece of foil covered by metalized glass or plastic, and are the same devices used in low-power night lights. Unfortunately, these devices need high voltages to operate, and are best driven by tube circuits which can supply voltage swings of several hundred volts.
Response characteristics
Once the light has faded away, the photoresistor then decays back to its dark state. The shape of the decay curve varies depending on how bright the light was, and how long the light lasted. A general rule of thumb is that the louder the program, the slower the release. Typically, the release can take up to and over one minute. One thing to keep in mind when using these types of devices is that the typical concepts of compression ratio, attack, release, and threshold do not apply. The light intensity is determined by the highly non-linear interactions of the input signal, AGC circuit, and ELP, and thus exhibit a strong program dependence that is impossible to describe without the mind-numbing mathematics of statistical mechanics. The actual results, however, can be almost mystical: even when you feed the same material (a loop perhaps) through the Leveler twice, you’ll often see a new response the second time through a loop, complete with unique attack times, release times and compression ratios. Furthermore, two different input signals with the same RMS levels may be leveled in a drastically different manner.
It is precisely this self-adjusting behavior that makes optical compressors the tool of choice for smoothing out vocals, bass guitar and fullprogram mixes without destroying perceived dynamics.
M I X E R E F F E C T S
Enabling or disabling the Leveler
The Leveler models the LA-2A so closely, it also models the time it takes for an actual LA-2A to
“warm up” after it is turned on. Therefore, when you enable the Leveler, give it a moment to “settle” before you begin processing signals with it.
Gain Reduction
Gain Reduction (Figure 8-5) sets the strength of the signal sent to the AGC model.
Makeup Gain
Makeup gain (Figure 8-5) amplifies the output signal to make up for gain reduction.
Limit button
The Limit button (Figure 8-5) models the original
LA-2A Limit/Compress mode switch. The effect is very subtle, with the Limit option behaving only slightly more like a limiter than a compressor. The switch increases the level of the input to the AGC model and runs the attenuator at a slightly lower level. The Leveler then responds more strongly to transients, but otherwise still behaves like a leveling amplifier.
REVERB
Use the enable/disable button (Figure 8-6) to turn
the reverb processor on or off. Since reverb uses considerable DSP resources, it is best to leave it off when you are not using it.
Routing inputs and groups to the reverb processor
The reverb processor is a single, independent unit that provides stereo reverb. You can route any input channel or Group bus to the Reverb processor with the Reverb send on its channel strip. All incoming signals to the reverb processor are merged and processed together. The resulting stereo output from the reverb can then be merged into the Main
Mix bus with the Main send on the Reverb channel
Reverb Time
Reverb time (Figure 8-6) determines the length of
decay, or tail, of the reverb. The knob’s range is from 100 milliseconds to 60 seconds.
Predelay
Predelay is the amount of time before the acoustic energy from the source returns to the listener, after reflecting off the surfaces of the listening space.
The very first reflections helps you perceive information about the listening space, (size, distance, surface type, etc.). In large rooms, it takes a while (on the order of milliseconds) before the first reflections return to the listener. Predelay is useful for adding clarity, as it delays these reflections, before the onset of full reverberation.
For example, with pre-delay added to vocals, the reflections won’t start until after the initial sound of a word has been sung.
Spread
Spread controls stereo imaging. A position of 12 o’clock produces essentially a mono image.
Turning the control all the way to the left completely swaps the stereo image.
High and Mid frequency bands
The High and Mid frequency bands let you independently control the reverb time for separate frequency bands, relative to the low frequency reverb time. The High setting represents the bottom frequency of the High band; the Mid
Figure 8-6: The Reverb processor.
61
M I X E R E F F E C T S
setting represents the bottom frequency of the Mid band. The Ratio determines the length for each band specified in a percentage of the low frequency reverb time.
DSP USAGE
The DSP Usage meter (item #26 on page 17) shows
how much of the available DSP processing power is currently being used by the mixer for the mix and for effects processing. If there aren’t enough DSP resources for all effects to be enabled on a channel, effects are disabled for that channel and all subsequent channels.
☛
Unlike other effects, HPF and EQ on a stereo channel requires approximately twice the DSP resources as on a mono channel.
62
M I X E R E F F E C T S
CHAPTER 9
Networking
OVERVIEW
The Audio Video Bridging (AVB) network port on the Monitor 8 opens up a world of possibilities for creating expanded, customized audio network systems.
About AVB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
MOTU’s AVB implementation . . . . . . . . . . . . . . . . . . . . . . . . 64
Networking examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
A quick guide to networking . . . . . . . . . . . . . . . . . . . . . . . . 66
Setting up a MOTU AVB interface for networking. . . . 67
Mapping audio to network streams . . . . . . . . . . . . . . . . . 67
Mapping computer channels to network streams . . . 67
Bridging to Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
The MOTU AVB Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
ABOUT AVB
Audio Video Bridging (AVB) is an extension of the
Ethernet standard developed by the IEEE (802.1 standards committee) specifically to add highperformance audio and video networking. AVB brings together the worlds of networking technology and high-end audio. Here is a brief summary of some of the immediate benefits of
AVB for you, as a MOTU AVB interface user:
â–
An open industry standard — AVB has been developed by the IEEE as an international standard specification. It is not proprietary or controlled by one company.
â–
High channel counts — AVB provides hundreds of network channels.
â–
Extremely low latency — AVB guarantees lowlatency, real-time performance.
â–
Guaranteed Quality of Service (QoS) — AVB’s
Stream Reservation Protocol provides Guaranteed
Quality of Service for each and every audio stream.
If the network cannot continuously maintain every bit of every sample in the audio stream, it will not allow you to make the network connection in the first place. AVB streams are prioritized over other network traffic to ensure high performance.
â–
Network-wide clocking and sync — AVB devices all clock together over your network for better-than-sample-accurate phase lock across all connected devices. Timing accuracy is down to the nanosecond.
â–
True plug-and-play operation — AVB has been designed from the ground up to provide automatic device discovery, enumeration, and connection management. Just plug your MOTU AVB interfaces into a standard AVB switch and go. If you wish to make stream connections and have the ability to select media clock, you must use the web app, or some other AVB controller. You don’t need an IT professional to configure the network. AVB is a self-managing network protocol.
â–
Bridging to standard Ethernet — AVB cooperates with standard Ethernet networks, for connecting traditional Ethernet devices like wireless routers, switches, or any other non-AVBaware device.
â–
Support for existing network infrastructure —
Replace your existing switches with standard AVBcompatible switches, and your CAT-5e or CAT-6 wired infrastructure now supports AVB.
â–
Long cable runs — a single AVB network connection can run up to 100 meters with a standard copper wire CAT-5e or CAT-6 cable.
Fiber-optic cable runs can be much longer. With multiple switches, you can create a network that covers very large distances, if necessary. You can use up to seven “hops” (switch-to-switch connections).
63
64
â–
AVB is already shipping on current Macs —
Apple supports AVB on all current shipping Macs, and the Monitor 8 can operate as a standard AVB audio interface when connected to your Mac’s
AVB-equipped Ethernet port.
MOTU’S AVB IMPLEMENTATION
MOTU engineering has faithfully implemented the
IEEE 802.1 AVB standard for the MOTU AVB products. This means that MOTU devices are fully interoperable with any 3rd party AVB-compatible device. In addition, MOTU has fine-tuned AVB operation among MOTU AVB devices for optimum performance, within the AVB specification. Here is a brief summary of advantages you will enjoy when using MOTU AVB devices together in a network:
â–
256 channels of host I/O — MOTU AVB interfaces equipped with Thunderbolt (the 1248,
8M, 16A and 112D) support 256 simultaneous channels of audio I/O (128 in, 128 out) to and from the entire network.
â–
Support for multiple computer hosts — All computers and all network devices run in sync with each other, resolved to the network’s master clock.
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Gigabit Ethernet — The MOTU AVB Switch delivers 1 Gbit Ethernet performance, which provides substantially higher bandwidth than
100 Mbit Ethernet. This allows you to have many more devices on the AVB network.
â–
Over 500 channels of network audio — MOTU’s
AVB network can stream over 500 channels of audio throughout the network. Depending on the model, some MOTU AVB devices can broadcast sixteen 8-channel network streams and simultaneously listen to sixteen 8-channel network streams.
â–
Exceptionally low network latency — Standard
AVB network latency is 2 ms. MOTU AVB network latency is an astonishing 0.6 ms, even over seven
“hops” (switches) and hundreds of meters of cable.
By comparison, other commercially available, proprietary audio network protocols have variable
(unpredictable) network latency in the range of
2-5 ms.
â–
Star configuration — MOTU AVB supports a star network configuration, which is much more flexible than daisy-chain scenarios, which depends on all devices in the chain.
â–
Web interface — MOTU AVB devices can be controlled from the MOTU AVB Control web app, which runs within any web browser on any networked laptop, tablet, or smart phone.
Although the web app shares the network with
AVB, AVB audio streams are never compromised because AVB streams over the network traffic.
â–
Bridging to standard Ethernet — the MOTU
AVB Switch provides an extra standard Ethernet port for bridging to your local Ethernet network,
Wi-Fi, etc. for command and control, internet access, and other standard network traffic. All ports allow connection to standard (non-AVB) network devices, however, the “Ethernet” port is suggested because it does not support AVB.
NETWORKING EXAMPLES
Networking comes into play as soon as you hook up a second MOTU interface to your first one, as
explained in “Setup for two interfaces” on page 32,
to add more I/O to your studio. Here are just a few examples of what is possible.
Personal studio expansion
Let’s say you have a Monitor 8 mounted in a rack next to your computer. You could add an 8M interface and position it across the room, near your drum kit, for placing up to 8 mics on the drums. All the mic cabling is kept near the drums, and you have one simple, clean network cable running back
N E T W O R K I N G
to your computer system. Despite the distance, the two interfaces operate as a seamless system, controlled from your computer or iPad.
Studio installation
A studio installation of three to five interfaces can be handled with a single MOTU AVB Switch. See
“Setup for three to five interfaces” on page 33.
Networking is ideal for studio installation because you can position interfaces at strategic locations.
Running cables becomes much simpler and more cost effective. Not only does a setup like this give you access to all I/O from your computer, even multiple computers, you can also route audio from any input to any output across devices with near zero latency. You can also route audio from one computer to another with very low latency. As a simple example, you could deploy several interfaces in a studio as follows:
Interface Location
24Ao
Purpose
Control room Multi-channel output in control room for main monitors, secondary monitors, surround, etc.
1248 Iso booth
Monitor 8 Studio room
Local mic and instrument
I/O in the iso booth.
Monitoring system for musicians.
8M
8M
24Ai
Studio room More mic inputs, or additional mic inputs for drum kit
8 more mics on the drum kit Studio room drum kit
Machine room Analog inputs for hardware synths, outboard returns, etc.
Large studio facility
In a larger studio facility, you could build audio network neighborhoods similar to the studio installation described earlier in multiple rooms, even multiple floors, with multiple computers and
Wi-Fi control from anywhere in the facility. All computers and devices can see each other and you can stream audio anywhere on the network with near-zero latency, as if any two devices were connected directly to each other.
Concert systems
Concert systems must be flexible so they can adapt to each new venue while on tour. Because of its modular nature, AVB networking allows you to design systems that are scalable and easy to adapt to each venue. You can easily bring devices on and offline, rerouting audio stems as needed.
Because MOTU AVB networking employs a star configuration, instead of daisy-chaining, you can set up backup computer playback systems on a shared network. For example, in a concert setting, if one computer system goes down, the backup system can be brought on line instantly through the same network infrastructure.
Traditionally, live performance setups often have separate domains for front of house mixing, monitor mixing, computer backline, and other systems. With MOTU AVB networking, these systems can be unified on the same network, opening up many possibilities for shared resources and mixing/routing responsibilities, especially from multiple sources (laptops, iPads, tablets, etc.)
MOTU AVB networking handles audio in convenient 8-channel stems, making large-scale network management more manageable. MOTU
AVB’s very low latency makes it particularly suitable for line arrays and sound reinforcement.
Large-scale venues
With long cable runs and industry standard networking infrastructure, MOTU AVB systems are well-suited for large-scale commercial installations such as arenas, stadiums, theme parks, clubs, casinos, houses of worship, broadcast facilities, schools, universities, and so on. Audio streams can travel long distances with sub-
65
N E T W O R K I N G
66
millisecond latency through as many as seven switches. Audio can be distributed from a centralized location to anywhere in the venue.
A QUICK GUIDE TO NETWORKING
MOTU AVB networking has been designed to be powerful, yet straightforward to set up and use.
Here are a few things that are useful to know.
Networking basics
â–
Before proceeding below, review the networking
connection diagrams on pages 32-34.
â–
To make network connections, use shielded
CAT-5e or CAT-6 cables (a higher grade cable).
â–
Network cable lengths can be long: 100 meters with standard copper wire cables; much longer with fiber-optic network cables.
Working with AVB switches
â–
Networks of three or more interfaces require an
AVB-compatible switch. You can use any standard
AVB switch on the market. MOTU offers the fiveport MOTU AVB Switch™ (sold separately).
☛
A non-AVB compatible switch will not work.
â–
Connect MOTU AVB interfaces to any AVB
Switch using their NETWORK ports.
â–
On the MOTU AVB Switch, connect MOTU interfaces to the five AVB NETWORK ports (not the Ethernet port). Connect the Ethernet port to a
Wi-Fi router, your Local Area Network (LAN) or your computer (for running web app only).
MOTU AVB interfaces or other AVB switches
Wi-Fi router, Ethernet hub/network, or computer
(Sold separately)
â–
Expand the network by adding more switches.
Make a single connection from one switch to the other. On MOTU AVB Switches, use their AVB
NETWORK ports, NOT the Ethernet port.
â–
You can daisy-chain switches in serial fashion, but don’t create loops. For example, in the network below, do not make any additional connections between any two switches.
B
C
D
E
A
F
G
â–
AVB audio can’t pass through more than seven switches. However, you can daisy-chain more than seven switches and route audio freely among them.
You just won’t be able to create point-to-point connects that span more than seven switches.
Working with computers on a network
â–
Computers are not required for network operation, as you can control the network from iPads, tablets and smart phones.
â–
To add computers to the network, connect them to any interface using Thunderbolt (which offers the highest possible channel counts). If
Thunderbolt is not available, use USB.
â–
A computer can be connected to the network through its Ethernet port, but only for the purposes of running the web app on the computer for command and control over the network. (In this scenario, you won’t be able to stream audio to/from the network from the computer.)
N E T W O R K I N G
â–
All computers and interfaces on the network have full access to each other.
â–
MOTU employs a 1 Gbit AVB implementation in the MOTU AVB Switch. The switch allows routing of many audio channels on the network.
SETTING UP A MOTU AVB INTERFACE FOR
NETWORKING
Depending on the model, MOTU AVB interfaces have the ability to broadcast up to sixteen
8-channel streams to the rest of the network.
Conversely, it can “listen” to as many as sixteen
8-channel streams from anywhere else in the network. The specific number of streams supported depends on the model.
For each device on the network, set it up for network operation as follows:
1
In the MOTU AVB Control web app, choose the
2
Go to the Device tab (item #5 on page 12), go to
the
AVB Stream Setup section (item #25 on page 13), and type in the number of 8-channel
input and output streams you want for that device.
3
Go to the AVB Stream Connections section (item
#10 on page 13), and choose the network stream
you want the device to listen to for each bank.
4
Use the Routing tab to map specific I/O channels within each MOTU AVB interface to its network input and output streams, as explained in the next section.
MAPPING AUDIO TO NETWORK STREAMS
Once you’ve configured a device’s AVB streams, as
explained above, use the Routing tab (page 14) to
map audio channels to network input and output streams.
Input streams (coming from the rest of the network) are listed across the top of the routing grid. Expand the stream and click on the grid to map incoming network channels to local destinations, including physical outputs on the device, computer channels (to a connected computer), or mixer channels.
Output streams being broadcast to the rest of the network are listed in rows along the left side of the grid. Expand each stream bank and map individual network output channels to local sources, such as physical inputs on the interface, channels coming from the computer, or channels coming from the device’s mixer.
MAPPING COMPUTER CHANNELS TO
NETWORK STREAMS
If a host computer is connected to an interface
(through USB), mapping network input and output streams is accomplished as described in the previous two sections. Simply enable AVB streams as desired, and map them to computer channels in the Routing grid.
If, while mapping, you run out of computer channels, enable more in the
Computer Setup
section of the Device tab (item #21 on page 13). If
the computer is connected with Thunderbolt, you can enable a maximum of 128 channels in and out.
If the computer is connected with USB, performance will vary, depending on the sample rate and other factors.
BRIDGING TO ETHERNET
The Ethernet port on the MOTU AVB Switch allows you to connect standard network devices, such as:
â–
A Wi-Fi router
â–
An Ethernet hub or switch connected to a local home, studio, or office network
â–
Any other standard networking device
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N E T W O R K I N G
THE MOTU AVB SWITCH
The heart of a MOTU AVB network is the MOTU
AVB Switch (sold separately). For a brief overview of the switch and its features, visit: www.motu.com/products/avb/avb-switch.
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N E T W O R K I N G
Part 3
Appendices
APPENDIX A
Troubleshooting
Some or all of my MOTU interface inputs and outputs are not available in my host audio software.
Make sure that the inputs and outputs are enabled
in the Device tab (“Device tab” on page 12) and
routed to and from the computer in the Routing
tab (“Routing tab” on page 14). For details, see
“Making inputs and outputs available to your host software” on page 50.
I have absolutely no audio input or output happening to or from my interface. Why?
Make sure that the unit has a stable sample rate (the sample rate will flash if the clock hasn’t settled yet).
Try setting the unit’s clock source to
Internal if you can’t sync to any external clock sources. Check that audio is working with Internal sync, and if so, then work on establishing a stable external clock.
I can't hear computer audio output through my
MOTU AVB interface.
In the Sound panel of System Preferences, the
Monitor 8 should be selected as the output device.
Almost all applications will use just the first two output channels, so make sure that
From Computer
1 and From Computer 2 are routed to the physical outputs that you are listening to in the Routing tab
(e.g. Phones 1-2 or Analog 1-2).
How do I monitor live inputs?
Please refer to the documentation for the audio application that you are using. If your application does not support input monitoring, you will need to use the mixer in the Monitor 8. Please see
“Monitoring through the Monitor 8” on page 53.
How do I control monitoring latency?
See “Reducing monitoring latency” on page 53.
The Routing tab (page 14) doesn’t display some of
the inputs or outputs on my interface.
The Routing tab only displays input and output
banks that are enabled in the Device tab (page 12),
so be sure any banks you wish to work with are enabled there. However, to conserve DSP resources and help consolidate screen-space in the other tabs, it is efficient practice to disable unused input or output banks (optical banks, for example, when only working with analog banks, or all output banks when only working with Phones).
I'm getting a “Could not enable this effect because
DSP is overloaded” error. What should I do?
Disable other effects or reduce the number of mixer inputs to conserve DSP resources. If there are audio input and output banks on your interface that you are not using (such as the optical banks), disable
them in the Device tab (page 12).
I accidentally deleted my factory presets. How do I restore them?
In the Device tab (page 12), click the
Restore
Factory Presets button to restore all factory presets.
How do I factory reset my device?
Push the SELECT knob/button to enter the main menu. Navigate to
Settings > Factory Default and push the SELECT knob/button twice to reset.
Clicks and pops due to hard drive problems...
If you have checked your clock settings and you are still getting clicks and pops in your audio, you may have a drive related problem. Set your Clock
Source to
Internal and try recording just using the analog inputs and outputs on the Monitor 8. If you encounter the same artifacts you may want try using another drive in your computer. Clicks and pops can also occur when the drive is severely fragmented or there are other drive-related issues.
71
72
Connecting or powering gear during operation...
It is not recommended that you connect/ disconnect, or power on/off devices connected to the Monitor 8 while recording or playing back audio. Doing so may cause a brief glitch in the audio.
CUSTOMER SUPPORT
We are happy to provide complimentary customer support to our registered users. If you haven’t already done so, please take a moment to register online at MOTU.com, or fill out and mail the included registration card. Doing so entitles you to technical support and notices about new products and software updates.
TECHNICAL SUPPORT
If you are unable, with your dealer’s help, to solve problems you encounter with your MOTU device, you may contact our technical support department in one of the following ways:
â–
Tech support hotline: (617) 576-3066 (Monday through Friday, 9 a.m. to 6 p.m. EST)
â–
Online support: www.motu.com/support
Please provide the following information to help us solve your problem as quickly as possible:
â–
The serial number of your MOTU device. This is printed on a label placed on the bottom of the rack unit. You must be able to supply this number to receive technical support.
â–
A brief explanation of the problem, including the exact sequence of actions which cause it, and the contents of any error messages which appear on the screen.
â–
The pages in the manual that refer to the features or operation of your MOTU AVB Device or
AudioDesk with which you are having trouble.
â–
The version of your computer’s operating system.
We’re not able to solve every problem immediately, but a quick call to us may yield a suggestion for a problem which you might otherwise spend hours trying to track down.
If you have features or ideas you would like to see implemented, we’d like to hear from you. Please write to the Development Team, MOTU Inc., 1280
Massachusetts Avenue, Cambridge, MA 02138, or use our online suggestion box at www.motu.com/ suggestions.
A P P E N D I X A : T R O U B L E S H O O T I N G
APPENDIX B
Audio Specifications
Line Out
Connector Type
Output Impedance
Dynamic Range
THD+N
Frequency Response
Max Level Out
Trim Range
Line In
Connector Type
Specification
Impedance Load
Dynamic Range
THD+N
Frequency Response
Max Level In
Trim Range
Phones
Connector Type
Dynamic Range
THD+N
Frequency Response
Drive
Trim Range
Power Supply
Connector Type
Configuration
Power Input
Power Usage
1/4” Female, TRS
XLR
1/4” Female, TS
100 ohm
123 dB
-110 dB (0.0003%)
+0, -0.1 dB, 20 Hz/20 kHz
+22 dBu
128 dB
1/4” Female, TRS
Complies with EBU-R68 / SMPTE RP-155
10 k ohm
110 dB
-104 dB
+0, -0.1 dB, 20 Hz/20 kHz
+24 dBu
118 dB
1/4” Female, TRS Stereo
108 dB
-100 dB
+0 -0.15 dB, 22 Hz/20 kHz
Max. 80 mw
128 dB
IEC 3-conductor receptacle
Internal, Universal
100 V to 240 V, 50 Hz or 60 Hz
35 watts
Balanced, tip hot
Pin 2 hot
Summed mono
Per leg
A-weighted
-1 dBFS, Unweighted, 1 kHz
Ref. 1 kHz
-127 to 0 dB in 1 dB steps
Balanced/unbalanced, Tip hot
A-weighted
-1 dBFS, Unweighted
Ref. 1 kHz
-96 to +22 dB in 1 dB steps
Tip Left, Ring Right
A-Weighted
Unweighted
Ref. 1 kHz
16/32/55 ohms
-127 to 0 dB (muted) in 1 dB steps
For AC mains connection
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A P P E N D I X B : A U D I O S P E C I F I C A T I O N S
APPENDIX C
Mixer Schematics
MONO INPUT CHANNEL
75
STEREO INPUT CHANNEL
76
+
A P P E N D I X C : M I X E R S C H E M A T I C S
GROUP BUS
A P P E N D I X C : M I X E R S C H E M A T I C S
+
77
MONITOR BUS
+
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A P P E N D I X C : M I X E R S C H E M A T I C S
APPENDIX D
Updating Firmware
MOTU periodically posts firmware updates for the
Monitor 8. These updates may include bug fixes, enhancements, and new features.
Updates are posted on MOTU’s servers. If your computer or Wi-Fi device has access to the internet, the MOTU AVB Control app notifies you as soon as an update is made available. Otherwise, you can check motu.com/avb periodically for the latest firmware update.
A network cable connection is required
Firmware updating requires a network cable connection, so before you begin, connect a standard CAT-5 or CAT-6 network cable from the network port on the Monitor 8 to one of the following:
â–
Your computer’s network port (or a
Thunderbolt-to-Ethernet adapter)
â–
Your home, studio, or office network (with internet access)
â–
An AVB port on a MOTU AVB switch
(connected to your office network through the
Ethernet port)
Updating with internet access
You are now ready to update:
1
Launch the MOTU AVB Control web app on your computer, iPad, or iPhone, as usual.
2
Go to the Device tab.
3
In the
New Update Available banner
More Info.
4
After reviewing the list of enhancements, click
OK to start the update.
5
Wait a few moments for the update to finish, then click OK to return to the Device tab.
Figure D-1: The firmware update banner appears automatically at the top of the
Device tab when your web host has internet access and MOTU posts an update.
79
Updating off-line, without internet access
If the Monitor 8 (and the computer it is connected to) has no internet access, you can download a firmware update file from another computer that does have internet, and then use the file to update the Monitor 8, as follows:
1
Download the firmware file.
2
Transfer the file to a computer with a network cable connection to the Monitor 8.
3
Launch the MOTU AVB Control web app on the computer, as usual.
4
Go to the Device tab.
5
Scroll down to the bottom and click
Update
from File.
6
Locate the file on your hard drive and click OK to start the update.
7
Wait a few moments for the update to finish, then click OK to return to the Device tab.
Viewing the latest firmware version information
You can confirm the firmware version at the
bottom of the Device tab (Figure D-2).
Why does the firmware update require a network cable?
Firmware updating was designed to use ethernet mostly for convenience. If you have lots of networked devices, you can upgrade them all from a distance (even over Wi-Fi) without having to plug in directly and without having to download or run an updater application.
This approach was also taken for engineering reasons, with reliability foremost in mind. When installing an update, the device reboots into a stripped-down recovery partition to guarantee that the update process can always be completed, even if the power goes out mid-update. Since updates can also affect the Thunderbolt or USB chips, they cannot be used during the update.
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Figure D-2: The currently installed firmware version is displayed at the bottom of the Device tab.
A P P E N D I X D : U P D A T I N G F I R M W A R E
APPENDIX E
OSC Support
Open Sound Control (OSC) is a protocol for communication among computers and other multimedia devices that is optimized for modern networking technology.
MOTU AVB audio interfaces support OSC, which provides remote control of all device settings and mixer controls from any OSC-enabled controller.
For further details about remote control through
OSC, along with complete documentation for the
MOTU AVB OSC API, visit:
http://www.motu.com/avb#avb-osc-support
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A P P E N D I X E : O S C S U P P O R T
Index
24-bit
2x SMUX mode
A
connecting
SMUX Type
Analog inputs/outputs
Apple
Logic Pro
ASIO monitoring
Attack
Compressor
Aux Mix Target
Aux Mixing tab
AVB
Stream Setup
Switch
Aux Mixing tab
Mixing tab
Routing tab
Avid
Discovery app
Input/Output Banks
overview
Stream Connections
Pro Tools
B
C
CAT-5e/6 cables
Check for Updates
Chrome
Class compliance
Clock section (LCD)
Clock source
Cockos Reaper
Compressor effect
Computer Setup
Connecting multiple interfaces 32
Control Panel
Control surface support (through OSC)
Converter mode setup/example
Converters
Core Audio driver
Cubase
sample rate
Customer support
D
Digital converter (see Optical converter)
Digital Performer
Direct hardware playthrough
Direct ASIO monitoring
Direct hardware playthrough
Drivers installing USB drivers
DSP effects
DSP Usage
E
Effects
EQ
enabling
frequency
gain
Q
Ethernet
Expansion
F
Firmware updates
Four-band EQ
Frequency
EQ
Front panel
menu navigation
metering
G
Gain
EQ
reduction (Leveler)
sample rate
Gate effect
GR (gain reduction)
H
Headphones
I
ID knob/button
IEEE 802.1
Input Settings
Inputs
Installation
AVB audio interface
network
software
Thunderbolt interface
two interfaces networked
Interface + mixer preset 7, 44
Internet Explorer
IP address
iPad
QuickStart
L
LCD menu
Leveler
Lightpipe
2x mode
Live
Live recording with monitor mixing preset
Logic Pro
clock source
M
input and output names
Makeup gain
Mixer accessing
aux bus
connecting
effects
input channel strip
main mix channel strip
Monitor channel strip
overview
Reverb bus
schematics
Setup
Mixing tab
Monitor 8 expansion
setup example
specifications
summary of features
MOTU
83
I N D E X
84
Aux Mixing tab
Mixing tab
Routing tab
AVB Discovery app
AVB Installer
AVB Switch
Digital Performer
MOTU AVB
USB ASIO driver
N
Networking
Nuendo
clock source
O
Optical
2x mode
connectors
Optical converter mode
Optical Converter preset
Optical converter preset setup/example
Optical converter with mixing preset
Optical setup
OS X audio software clock source
OSC support
Output banks
Outputs
P
Patch thru latency
Performance
PRE switch
PreDelay
Prefader button
Presets
Mixer tab
overview
Processing
Q
Q
R
Ratio
Compressor
Reason
Record
Registration
Release
Compressor
design section
predelay
RMS mode
S
S/MUX
S/PDIF
Sample rate
Samplers
SC button
Software
Software installer
Soundtrack Pro
sample rate
Stage I/O with mixing preset
Stage monitors connecting
Stand-alone mixer preset
Stand-alone operation
Steinberg
Cubase
Nuendo
Synchronization
Synths connecting
System requirements
T
Threshold
Compressor
To Computer
Type II (Legacy) optical setting
U
Update From File
USB
installing drivers
USB Streaming Mode
V
W
Wave driver
Width
Wi-Fi reverb
Windows shortcut
I N D E X
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Related manuals
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Table of contents
- 11 Overview
- 11 It’s not on your hard drive
- 11 Use your favorite web browser
- 11 Control from multiple devices
- 11 Run the installer, get the app
- 11 Make hardware and network connections
- 11 Launching the web app
- 11 Obtaining the Monitor 8’s IP address
- 12 Device tab
- 13 Device tab (continued)
- 14 Routing tab
- 15 Mixing tab
- 16 Aux Mixing tab
- 17 Mixer input channel strips
- 18 Main Mix and Monitor channel strips
- 19 Aux bus channel strips
- 20 Group and Reverb channel strips
- 21 State-of-the-art A/D and D/A conversion
- 21 Complementary I/O configurations
- 21 Monitor 8
- 21 Network I/O
- 21 Other MOTU AVB interfaces
- 21 1248
- 22 8M
- 22 16A
- 22 24Ai
- 22 24Ao
- 22 Universal connectivity
- 22 On-board DSP with mixing and effects
- 22 32-bit floating point processing
- 22 Modeled vintage effects processing
- 22 AVB system expansion and audio networking
- 23 Matrix routing and multing
- 23 24 channels of network audio I/O for your host computer
- 23 Web app control
- 23 Stand-alone mixing with wireless control
- 23 ADAT digital input
- 23 Comprehensive metering
- 23 Precision Digital Trim™
- 23 Rack mount or desktop operation
- 23 AudioDesk
- 25 Packing List
- 25 System Requirements
- 25 Please register today!
- 27 Overview
- 27 USB 2.0 class-compliant operation
- 27 Operation as an AVB Ethernet audio interface
- 27 Software installation
- 28 Download and run the MOTU AVB Audio Installer
- 28 Audio drivers
- 28 MOTU AVB USB ASIO Driver
- 28 MOTU AVB Discovery app for Mac
- 28 MOTU AVB WebUI Setup for Windows
- 28 MOTU AVB USB Control Panel
- 28 USB Streaming Mode
- 28 ASIO Buffer Size
- 29 AudioDesk workstation software
- 29 Working with host audio software
- 31 Overview
- 31 Rack installation and heat
- 31 USB audio interface setup
- 32 AVB Ethernet audio interface setup
- 32 About CAT-5e cables
- 32 Setup for two interfaces
- 33 Setup for three to five interfaces
- 34 Setup for a multi-switch network
- 35 Setup for multiple interfaces
- 35 Connecting multiple interfaces using Thunderbolt
- 35 Connecting multiple interfaces using Thunderbolt and USB
- 35 Multiple interfaces and USB
- 35 Multiple AVB Ethernet audio interfaces
- 35 Mixing and matching audio interfaces
- 36 Setup for web app control
- 36 Web app control can be set up independently of audio connections
- 36 Mixing and matching web app control scenarios
- 36 Launching the web app
- 36 Web app control over USB or Thunderbolt
- 36 Web app control through standard Ethernet
- 38 A typical Monitor 8 setup
- 39 Audio connections
- 39 Analog trims
- 39 Optical
- 39 Syncing an AVB network
- 39 Choosing a master clock
- 40 Resolving the master clock device to an external clock source
- 40 Syncing multiple AVB audio interfaces connected to a Mac
- 43 Overview
- 43 Preset menu
- 43 Create your own presets
- 43 Video tutorials
- 43 Audio interface
- 44 Stand-alone mixer
- 44 Interface + mixer
- 45 Live recording with monitor mixing
- 45 Stage I/O
- 45 Stage I/O with mixing
- 46 Studio input expander
- 46 Studio output expander
- 46 Optical converter
- 46 Optical converter with mixing
- 47 Overview
- 47 Level meters
- 47 Push-button Knobs
- 47 Muting outputs
- 47 Channel focus
- 47 ID
- 47 Menu Navigation
- 47 Main Menu
- 48 Device menu
- 48 Network menu
- 48 Settings menu
- 48 Presets menu
- 48 Version menu
- 48 Clock
- 48 ADAT SMUX Type
- 48 Stand-alone operation
- 49 Overview
- 49 Preparation
- 49 Run the web app
- 49 Sample rate
- 49 Clock Mode
- 49 Enabling and disabling input/output banks
- 50 Specifying the number of computer channels
- 50 Making inputs and outputs available to your host software
- 50 Configuration presets
- 50 Naming computer input and output channels
- 51 Streaming computer audio to and from the onboard mixer
- 52 Working with AVB network streams
- 52 Mirroring computer channels to multiple outputs
- 52 Combining multiple inputs to one output
- 52 Routing grid tutorials
- 52 Choosing the MOTU AVB Audio driver
- 52 For Mac OS X audio software
- 52 For Windows audio software
- 52 Where to go in popular audio hosts
- 52 Other audio software
- 53 Reducing monitoring latency
- 53 Monitoring through the Monitor 8
- 53 Direct hardware playthrough / Direct ASIO monitoring
- 53 Monitoring through your host audio software
- 54 Adjusting your host software audio buffer
- 54 Adjusting buffer size on Mac OS X
- 54 Adjusting buffer size on Windows
- 54 Lower latency versus higher CPU overhead
- 55 Transport responsiveness
- 55 Effects processing and automated mixing
- 55 Working with on-board mixing and effects
- 57 Overview
- 57 Powerful DSP-driven mixing and effects
- 57 Advantages over host-based mixing and processing
- 57 High Pass Filter
- 58 Gate
- 58 Four-band parametric EQ
- 58 Vintage EQ
- 58 Enabling EQ
- 58 EQ filter controls
- 58 Double-click a knob to return to its default position.
- 58 EQ filter characteristics
- 59 Low and high shelf filters
- 59 Compressor
- 60 Leveler
- 60 A model of an optical compressor
- 60 Automatic gain control using light
- 60 Response characteristics
- 61 Enabling or disabling the Leveler
- 61 Gain Reduction
- 61 Makeup Gain
- 61 Limit button
- 61 Reverb
- 61 Routing inputs and groups to the reverb processor
- 61 Reverb Time
- 61 Predelay
- 61 Spread
- 61 High and Mid frequency bands
- 62 DSP Usage
- 63 Overview
- 63 About AVB
- 64 MOTU’s AVB implementation
- 64 Networking examples
- 64 Personal studio expansion
- 65 Studio installation
- 65 Large studio facility
- 65 Concert systems
- 65 Large-scale venues
- 66 A quick guide to networking
- 66 Networking basics
- 66 Working with AVB switches
- 66 Working with computers on a network
- 67 Setting up a MOTU AVB interface for networking
- 67 Mapping audio to network streams
- 67 Mapping computer channels to network streams
- 67 Bridging to Ethernet
- 68 The MOTU AVB Switch
- 72 Customer Support
- 72 Technical Support
- 75 Mono input channel
- 76 Stereo input channel
- 77 Group bus
- 78 Monitor bus
- 79 A network cable connection is required
- 79 Updating with internet access
- 80 Updating off-line, without internet access
- 80 Viewing the latest firmware version information
- 80 Why does the firmware update require a network cable?