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APPENDIX A
Audio I/O reference
OVERVIEW
The MOTU Audio drivers supply text string labels for the Track16’s audio inputs and outputs to clearly identify each one, but some applications do not display these labels.
The following sections show how you can identify each input and output in a numbered list like this.
Inputs at 1x sample rates
Inputs are always listed in the same order as follows, when operating the Track16 at 1x sample rates (44.1 or 48 kHz):
Guitar
Line
Stereo return
Reverb return
Optical
Input
44.1/48 kHz Channels
Mic 2
2
4
2
2
List position Comment
1-2
3-4
5-8
9-10
11-12
8 ADAT
2 TOSLINK
13-20
13-14
-
-
-
See “Return Assign” on page 44.
See “Reverb return” on page 44.
-
Inputs at 2x sample rates
When operating the Track16 at a 2x sample rate
(88.2 or 96 kHz), inputs are listed as follows:
Line
Stereo return
Reverb return
Optical
Input
88.2/96 kHz Channels
Mic 2
Guitar 2
4
2
2
List position Comment
1-2 -
3-4 -
5-8
9-10
11-12
4 ADAT
2 TOSLINK
13-16
13-14
-
See “Return Assign” on page 44.
See “Reverb return” on page 44.
-
Inputs at 4x sample rates
When operating the Track16 at a 4x sample rate
(176.4 or 192 kHz), inputs are listed as follows:
Input
176.4/192 kHz Channels
Mic 2
Guitar 2
Line
Stereo return
Reverb return
Optical
4
2
Not available
Not available
-
-
List position Comment
1-2 -
3-4 -
5-8
9-10
-
-
-
111
112
Outputs at 1x sample rates
Outputs are always listed in the same order as follows, when operating the Track16 at 1x sample rates (44.1 or 48 kHz):
Output
44.1/48 kHz Channels
Main out 2
Phones
Line
Optical
List position Comment
1-2
2
2
3-4
5-6
8 ADAT
2 TOSLINK
7-14
7-8
-
-
-
-
Outputs at 2x sample rates
When operating the Track16 at a 2x sample rate
(88.2 or 96 kHz), outputs are listed as follows:
Output
88.2/96 kHz Channels
Main out
Phones
Line
Optical
2
2
List position Comment
1-2 -
3-4 -
2 5-6
8 ADAT
2 TOSLINK
7-10
7-8
-
-
Outputs at 4x sample rates
When operating the Track16 at a 4x sample rate
(176.4 or 192 kHz), outputs are listed as follows:
Output
176.4/ 192 kHz Channels
Main out 2
Phones 2
Line
Optical
2
Not available
List position Comment
1-2 -
3-4 -
5-6
-
-
-
A P P E N D I X A : A U D I O I / O R E F E R E N C E
APPENDIX B
Troubleshooting
When I press the METERS button, all the other buttons change color. What’s going on?
You have accidentally put the Track16 in Lockout mode, which lets you change the color scheme for the button LEDs. To exit this mode, hold down the
METERS button for 2 seconds. To learn more about this mode, and how you can specify the color
scheme you prefer, see “Lockout mode” and
“Button LED color schemes” on page 42.
Slaving directly to time code in AudioDesk or
Digital Performer
To slave Digital Performer or AudioDesk directly to time code, be sure to go to the Receive Sync dialog in Digital Performer or AudioDesk and switch from “MTC” to “Sample-accurate.”
Can’t authenticate AudioDesk
When authenticating AudioDesk, the OK button does not become active until you have entered in your name and a valid keycode. Your name must contain at least three characters, and you must enter the keycode exactly as it appears (on the jacket of your AudioDesk installer disc). If you continue to have difficulties, try repairing
Mac OS X disk permissions using
Disk Utility
.
Clicks and pops under word clock sync
Many problems result from incorrect word clocking. It is essential that all digital devices in the
system be word locked. Consult “Choosing a clock source for optical connections” on page 27 for
detailed information on how to sync with other gear that is connected optically. Whenever there is any weird noise or distortion, suspect incorrect digital clocking.
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 of the Track16. 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.
If you are using a FireWire drive on the same bus as the Track16, it could be that the FireWire bus is overloaded (too many devices on the same bus).
Try removing all devices except the Track16.
Connecting or powering gear during operation
It is not recommended that you connect/ disconnect, or power on/off devices connected to the Track16 while recording or playing back audio.
Doing so may cause a brief glitch in the audio.
Track16 inputs and outputs are not available in host audio software
Make sure that the inputs and outputs are enabled.
See “Working with Track16 inputs and outputs” on page 47.
No optical inputs or outputs are available in host audio application
Check to make sure you have the desired optical inputs and/or outputs enabled in the MOTU Audio
Setup.
Monitoring - How to monitor 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 Track16’s hardware-based CueMix FX
monitoring feature. Please see chapter 8,
“Reducing Monitoring Latency” (page 51).
113
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