Powerful, full featured audio processing software for your PC.
Quick Start Setup Guide
v8.53
For part numbers: 3001-00070, 3001-00071, 3001-00085-000 and 3001-00086-000
ATTENTION!
This quick start guide is intended to aid with basic deployment of the OmniaSST.
For further support and/or questions please contact support@telosalliance.com
Omnia Audio • 1241
Superior Ave. • Cleveland,
Ohio,
44114,
USA • OMNIASST
+1.216.241.7225 • TelosAlliance.com
1490-00182-002
--- QUICK
START
GUIDE:
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Quick Start Guide (v8.53) November, 2017
Introduction
Thank you for purchasing Omnia SST, a fully-featured software-based audio processor
for FM and digital broadcast. SST offers a powerful suite of tools to both repair and process audio. Omnia SST is the first processor to offer Omnia µMPX™, (Micro-MPX)the
first codec, capable of transporting composite audio over IP at an astonishing 320kbps.
Audio cleanup tools in Omnia SST include our acclaimed de-clipping technology,
as well as hum and noise removal, and the unique “de-lossifier” to restore life to bitreduced audio files. Processing sections include AGC to tame inconsistent input levels,
equalization to fine-tune the overall spectral balance, stereo enhancement for managing
the stereo image, the aptly named “bass in your face” to add low end punch, and two
stages of multiband compression (each with up to 9 bands depending on the preset) to
further tailor your one-of-a-kind sonic signature.
For FM broadcast, SST includes a fully-featured stereo generator, dynamic RDS generator with UECP, and a final clipper which maximizes loudness while minimizing the
typical tradeoffs in distortion, even when driven to extremes. Some excellent sounding
presets complete the package, providing you a fast path to a signature sound, or a starting point for you to customize your own settings.
Omnia SST is sold bundled with an integrated Omnia µMPX™ encoder and a single
µMPX™ decoder license. Additional decoder licenses are required to transport composite audio to more than one PC. Omnia SST may also be purchased as a standalone
processor (no µMPX™ capability). Additionally, Omnia µMPX™ send/receive software
may be purchased as stand-alone components using command line driven Windows
applications. When using component Omnia µMPX™ applications, be certain to order
both Encode and Decode licenses. Please refer to the user manual for instructions on
configuring Micro-MPX.
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System Requirements
Omnia SST requires some knowledge of general computer configuration and administration. SST should be run on a dedicated, stable computer that is not shared with other
applications. This will, after all, be your on-air audio processor. (You probably don’t
want the morning guy using it to play Solitaire or looking at videos on YouTube.)
Once you have a stable system up and running, it should be treated like an “appliance”.
Windows updates should only be applied as absolutely necessary and the machine
should be kept well secured behind a firewall. While other applications can co-exist with
SST, the fewer variables in your computer environment and the fewer changes you make
to your “processor PC”, the lower the risk. Standard IT best practices apply here, though
you will want to at the very least disable any “power saving” features and set the machine to log in automatically so SST can launch at startup and run in the background.
You will also want to assign a static IP address to the system so the Omnia SST interface
can be accessed remotely.
Since the software is fully controlled via HTML 5 web interface, you may even consider
removing the keyboard, monitor, and mouse after setup—after of course making any
necessary BIOS changes to ignore keyboard errors, and testing to make sure the system
will reboot properly without operator intervention.
Hardware
The actual requirements for SST are fairly modest but as a general rule, the faster the
machine and the more RAM the better (though choosing a relatively modern multiple
core processor is far more important here). A 2.4 GHz Core i3 with 4 GB of RAM is a
good starting point, though a 3.6 GHz Core i7 with 8 GB of RAM would be even better.
Operating System
SST will work with most modern Windows operating systems, but we recommend Windows 7 Professional. This has proven to be a very stable platform. Windows 10 can also
work, but is not currently recommended due to the fact that updates (as well as reboots)
are often forced and cannot easily be disabled.
OMNIA SST - QUICK START SETUP GUIDE |
SST and Audio Cards
While any audio interface supported by Windows SHOULD work with SST, there are
several considerations. There are thousands of choices for Audio cards in the PC world,
from state of the art professional gear, to utilitarian junk. While SST will work with
just about anything, sound card quality is important, especially in what can be a high
noise environment like a PC case, or a high RF environment like a transmitter room. In
general, we recommend you buy the best hardware that you can afford. That said, cards
using either WDM or ASIO drivers are supported and will work simultaneously, though
ASIO is preferred for stability and lower latency.
Sample Rate
Since SST is capable of generating an entire composite MPX baseband (including 57
kHz RBDS, as well as 67 and 92 kHz SCA signals) a high-quality sound card should be
used. This card must be capable of a 192 kHz sampling rate. Many onboard audio interfaces are in fact capable of 192 kHz operation, but often suffer from poor noise performance and other issues. If you do not plan to generate MPX from SST, any audio card of
reasonable quality supporting sample rates below 192 kHz should suffice.
Balanced I/O
Choosing an audio card with professional level (+4 dBu) balanced I/O will offer optimum performance, and ensure that more than enough headroom is available when
used to generate MPX or otherwise. Since most MPX inputs are unbalanced on a BNC
connector, you will need to wire a cable with XLR pin 2 (or TRS “tip”) connected to the
center pin of the BNC, and pin 1 connected to the shield of the BNC.
Commercially manufactured adaptors from XLR or ¼” TRS to BNC are available from
various sources. Avoid audio cards which only provide miniplug (headphone) outputs
if at all possible. These interfaces typically lack shielding or isolation of analog sections
and are more prone to noise and interference.
DC Coupling
When used to generate MPX, the card should preferably have “DC Coupled” outputs for
best performance. If the card outputs are not DC coupled, overshoots and loss of loudness can occur.
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To determine whether or not the outputs of a card are DC coupled, a quick test is to use
the test signal generator in SST to produce a 60 Hz square wave (or lower) and look at
the output of the audio card on an oscilloscope set to DC input coupling. If the waveform is perfectly square (or relatively close to it) as shown in the image above, your
audio card is likely DC coupled and should not need additional correction.
If there is any “tilt” to the square wave as demonstrated in this second image, the card’s
output is likely NOT DC coupled. Adjust the FM tilt correction as described later in this
document until the waveform is square.
OMNIA SST - QUICK START SETUP GUIDE |
If you don’t have an oscilloscope handy, you can also measure the modulation level at
various frequencies with a modulation monitor, or (as a last resort) the internal modulation metering on your exciter. The modulation level should be fairly consistent with a 15
Hz square wave, as well as sine waves at 15 Hz, 1 kHz, and 60 kHz. If it is not, adjust the
tilt correction until modulation levels are consistent at each of these frequencies.
Suggested Cards
SST has been tested and known to work with a DC coupled version of the AudioScience 5810/ 5811 cards. (hardware rev B2 or later). The Marian Trace Alpha and Marian
Seraph AD2 have also been tested and known to work well.
192K capable boards from reputable companies such as Lynx have been reported to
work decently. Additional cards are being tested and will be added to this list in the near
future. Many cards are capable of working with SST, but performance will vary, and it is
the responsibility of you, the end user, to qualify audio hardware for your specific facility and setup. As such, Telos can make no warranties regarding audio hardware, nor can
we offer customer support for hardware we have neither sold nor seen.
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Installation
Installing SST on your computer is relatively straightforward. The process is much like
installation of any other application.
Download and launch the SST installer. Click “Next” to continue.
Note:
Make sure you are installing SST on the system that you intend to run it on. Licensing will be tied
to that specific machine. Contact technical support via support@telosalliance.com for additional
information on licensing considerations.
OMNIA SST - QUICK START SETUP GUIDE |
Accept the license agreement and click “Install”.
Click “Finish” once again to exit the SST installer. A “Readme” file (this document)
will appear.
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Getting Started with Omnia SST
Launch Omnia SST from the desktop icon that was created. From this point, all control
will be done through the web GUI.
You may receive a prompt requesting that Omnia SST be allowed through the Windows
Firewall on the first launch. Click “Allow Access”. You may also wish to check the second
box if this system is behind an existing firewall. Private network connections can occasionally be mis-categorized by Windows as Public connections.
As Omnia SST launches, a splash screen will appear briefly. The program is minimized
to the system tray at launch.
OMNIA SST - QUICK START SETUP GUIDE |
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The SST icon is the black box. In some cases, you may need to click the arrow to reveal
“hidden” system tray icons. If audio is present at the default input, there will be I/O metering displayed here. Single-click the icon to launch the web GUI or right-click to bring
up a menu which will allow you to configure the web interface, launch the web interface,
or exit Omnia SST and stop all processing.
Running as a Service or Multiple Instances
In some cases, you may wish to run Omnia SST as a Windows service. Multiple instances are supported, either as a service or as a standalone application. Note that each
instance requires a separate license code and a uniquely named executable (OmniaSST1.
exe, OmniaSST2.exe, etc).
The following command line switches are supported:
Install service: -i
Uninstall service: -u
Run as service without installing: -run
Install as service, run immediately and at system start: -i -run
*The -run option will also automatically restart the service if it should stop.
Note that when running as a service, the system tray icon will not be available. Omnia
SST will be running entirely as a Windows service with only the web GUI for management. You will want to configure the web interface port(s) for each instance appropriately BEFORE installing and running as a service. The Windows service manager can be
used to start or stop each instance of Omnia SST running as a service. This can be done
from the command line (net start omniasst or net stop omniasst).
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Web Interface Configuration (optional)
By default, only local access is allowed (127.0.0.1) and the port is set to 8080. You may
wish to extend this to allow access via your local area network, particularly if you choose
to run your Omnia SST system without a keyboard, monitor, and mouse attached.
Right-click on the SST icon in the taskbar and select “Configure web interface” to reconfigure these settings if necessary.
In the above example, in addition to the local system, any host on the 192.168.200.x
network will be allowed access. IP addresses for individual machines can be specified
here as well. Entries take effect immediately and can be separated by a comma or space.
When finished, minimize the window or click the X to close.
Navigating the interface
Click the SST icon in the system tray to open a browser window to the SST user interface. The “home” screen (above) allows quick access to various sections of configuration
and metering. This screen allows direct access to I/O configuration by clicking on any of
the purple input or output buttons. “Clean up” and “Processing” allow access to comprehensive parameter sections. A “Quick Adjust” panel allows rapid access to the most
common processing adjustments.
From various screens, use your mouse or pointing device to click, drag or swipe objects
between on/off, or to set various values. Note that if you single-click on a “slider” control, you can use the Left/ Right arrows to increase or decrease values in single increments, instead of dragging with a mouse. You can also click on most values to enter a
number directly, then press “enter” to accept.
OMNIA SST - QUICK START SETUP GUIDE | 11
Shortcuts & Icon Buttons
nn
The Home
time.
nn
The Settings
nn
nn
nn
nn
button is at the top of the window. Click to return here at any
button enters the main configuration screen
opens the preset management window
will flash red to indicate the presence of any alarm conditions such as audio
card errors. Click to view or clear the alarms.
will open the main metering panel.
click on the help icon so it is highlighted in yellow, then you can click on
different screen elements to find out more about what they do.
Configuration
Once SST is up and running, you’ll need to do some initial setup. This includes starting
the software automatically, applying the license key, configuring the audio I/O, adjusting
some MPX settings, and choosing a preset.
This quick start guide covers the basics. The SST graphic user interface is built to be easy
to navigate and explore. We encourage you to click on various buttons and screens to get
oriented to this powerful software processor.
12 | OMNIA SST - QUICK START SETUP GUIDE
System
These settings control a few global parameters such as whether or not the software automatically starts with Windows, allows complete bypass of all processing, and disables
“Hear” and “Delta” controls in the software that would otherwise interrupt the processed signal on-air when toggled.
OMNIA SST - QUICK START SETUP GUIDE | 13
License
License keys for Omnia SST are generated using the request code from this screen, and
are specific to each hardware installation. Once you have purchased the software, copy
the request code, and paste it into an e-mail to with your invoice to ordering@telosalliance.com. They will reply with a permanent license key to paste into the license key
field.
Demo versions:
Omnia SST will install and run without licensing, but recorded “You are listening to
Omnia SST” messages will be injected into the audio with increasing regularity. For
many, this mode will suffice for off-line evaluation, or for overnight testing. If you need
to evaluate OmniaSST over the air without interruption, you may request a limited,
short term license at the email address above, or through your Omnia dealer.
Soundcards
This configuration panel contains all parameters related to sound card I/O selection,
level adjustments, and tilt correction. These settings can also be directly accessed by
clicking the purple “Input” and “Output” buttons from the “Home” screen. Many of
these settings appear in multiple places, but will only be covered here once.
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Note:
Changing any settings in this section WILL cause a brief audio glitch across all outputs as the buffer is
cleared and all I/O devices are reset. All changes take effect IMMEDIATELY.
Sample rate
Choose the sample rate you wish to run Omnia SST at. If you plan to generate MPX,
this should be set to 192 kHz. If you do not plan to generate MPX with Omnia SST, this
can be any valid sample rate supported by your audio hardware.
ASIO
This section will globally enable or disable use of ASIO drivers. It is strongly recommended that you use an ASIO driver with SST if your audio card supports it. This will
increase stability, and reduce latency. Only one ASIO device can be selected here. This
device will be used in all sections when configuring the ASIO I/O channels in those
sections. WDM devices are also supported by choosing “No ASIO” in the appropriate
sections, and selecting the desired WDM device ID. Selecting ASIO input or output
channels will always override the Input or Output Device ID setting in each section.
Other modes supported include Kernel Streaming, WASAPI, and MME. If ASIO is not
available, Kernel Streaming would be the preferred selection. It may take some trial and
error to determine which selection provides the best stability and lowest latency for your
specific audio hardware.
OMNIA SST - QUICK START SETUP GUIDE | 15
Main Input
The “Main Input” settings (as you would expect) select what audio device and inputs
feed the main program path through SST. If you are using an ASIO device for input, select the appropriate left and right channels. This will automatically disable and override
the “Input Device ID” field, which is used for selecting a WDM device. If you wish to
use a WDM device, set “ASIO input Left” to “No ASIO” and choose the desired WDM
device in the “Input Device ID” menu.
Input Level Correction
Each audio input has an “Input gain” setting to compensate for low level audio inputs,
as well as a “Balance” adjustment to compensate for differences between left and right
input levels. Adjust as necessary to achieve sufficient input levels without overdriving
the rest of the processing stages. This would typically put the input meter bars between
-6 and 0 on the scale. Click the
icon at the top of the window if necessary to show
the input metering and scope, along with output and MPX displays.
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The “grey” portion of the meter is the actual input level, and the “yellow” portion of the
meter reflects any additional gain added with the input level correction control.
FM Output
The FM output section controls which audio card output(s) will be used for the MPX
signal, and the output level of the MPX signal. Tilt correction for the FM output, as well
as a test signal generator, and MPX delay for booster or single frequency network use is
also available.
OMNIA SST - QUICK START SETUP GUIDE | 17
The buffer indicator bar below these settings will indicate the status of the output buffer. This bar should stay at least halfway filled, if it doesn’t, the buffer is getting starved
and audio dropouts can occur. If your system can not maintain adequate buffers, it may
not have enough CPU horsepower to operate at the selected sample rate, buffer size, and
latency settings.
Tilt Correction
As mentioned earlier, many audio cards are not “DC Coupled”. This can result in less
than optimum performance when used to generate MPX signals. Tilt on the output can
cause overshoots and loss of potential loudness. Tilt on the input can cause loss of bass
and slightly reduced de-clipper performance. To compensate for this, SST has built in
“Tilt Correction” controls with pre- and post-correction oscilloscope displays.
This example shows the FM output tilt correction settings with the internal square wave
generator enabled and correction enabled, but no correction value set. While looking at
the output of the card on an oscilloscope, adjust the “RC” control until the square wave
is flat. The corrected output will be reflected in the right hand waveform, which will
begin to tilt in the opposite direction as it compensates for tilt introduced by the card.
Adjusting for tilt on the input is a similar process, but requires that a square wave be fed
into the card from an external (DC coupled) source.
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Additional I/O
In addition to the main input and FM output, several other I/O paths are provided.
These include a secondary audio input for backup audio, SCA audio, or an external
RBDS generator and outputs for Streaming/DAB/HD as well as low latency monitoring.
Configuring this additional I/O is similar to configuring the main input and FM output,
but is not detailed in this quick start guide.
Choosing a Preset
Click the
button at the top of the window to open the presets panel. This
panel is divided into several sections.
1. The first section displays recently selected presets
2. The second section displays factory “Processing” presets which recall
“Processing” parameters (not “Cleanup” or other SST I/O settings)
3. The third section will recall parameters specific to the “Cleanup” section of SST
(such as de-clipper, “delossifier”, and noise removal)
4. The final section will display any “Custom” presets that have been saved. User
saved “Custom” presets in the final section allow all parameters to be recalled;
e.g. any combination of settings types (I/O, Cleanup, and Processing).
If you aren’t sure where to start, pick a preset from the “Processing” section and apply
it. Listen. “Analog Pleasure” is a good place to start (although this author is partial to
“Lovin’ Life”). Once you find a factory preset that is “close” to the sound you’re looking
for, you can adjust it using either the “Clean Up” and “Processing” panels, or the “Quick
Adjust” settings, then save it using the “Save…” command at the top of the window.
After saving the preset, it will appear in the “Custom” list.
OMNIA SST - QUICK START SETUP GUIDE | 19
Modifying Presets
From the “Home” screen, click on the “Clean Up” or “Processing” icon to open the corresponding panel of parameter blocks. You can also navigate between them by clicking
the purple “Processing” and “Clean Up” icons in each panel. Click “Quick Adjust” to
access the most common processing parameters.
Quick Adjust
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Clean Up/Processing
These parameter blocks are laid out in the order of signal flow within the software. Click
the title of each block to bring up the controls for that parameter block, click the
icon to enable or bypass each block, or click the
that point, bypassing subsequent blocks.
button to hear all processing up to
Note:
The “Hear” buttons WILL affect your signal on the air. These buttons can be disabled through the
system section of the configuration page.
OMNIA SST - QUICK START SETUP GUIDE | 21
Adjusting Processing Parameters
Each parameter block will open a set of controls for that particular block. Metering information for the selected block and related blocks will be displayed across the top. This
metering display can be toggled using the
button near the top right corner of the
window. To display metering for all blocks simultaneously, click the
button. Click
to select a different block of parameters.
As with any processing, make SMALL and INCREMENTAL changes. Don’t try to
change too much at once. Change a few things, listen, try again. The professionals know
that intense listening and preset tuning for many hours can be fatiguing. A great preset
strategy is often to get to a good point, save your settings, sleep on it and come back the
next day with “fresh” ears. You can always save multiple versions for comparison during
adjustment. Once you’ve got a sound you like, sit back and enjoy!
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Frequently Asked Questions
What exactly is SST?
Omnia SST is a completely software-based audio processor. It can turn a PC into a highperformance FM audio processor when coupled with an appropriate audio interface.
Can I really turn my PC into an FM processor with it?
YES! All it takes is an audio interface capable of 192 kHz operation (preferably with DC
coupled outputs).
Can I use any PC?
You can use a wide variety, but don’t waste your time trying to use old, under- powered
single core computers with unsupported Windows versions that are being retired by the
front office. A quad core Intel i3 at 2.4gHz is a good start, and 4GB ram is minimum.
A clean software environment (not running lots of background programs) is recommended. SST will be doing some important work at your facility; it should be run on a
dedicated machine that can be left to do its primary job.
Does SST support multiple audio paths (Studio monitor, HD, SCA, etc)?
Absolutely. In addition to the FM (MPX) output, Omnia SST provides outputs for both
digital (Streaming/HD/DAB) and low latency monitoring. It also features dual internal
SCA generators to support analog SCA applications.
What about backup audio paths?
SST has full support for external backup audio sources. The secondary input can be
either continuously mixed with the main audio path, or switched after a specified period
of time when silence is detected.
How about RDS/RBDS?
Omnia SST includes a fully-featured dynamic RDS/RBDS generator, complete with
UECP support.
OMNIA SST - QUICK START SETUP GUIDE | 23
What makes Omnia SST different from other FM processors?
Omnia SST is the FIRST FM processor to incorporate Omnia µMPX™! “Micro MPX”
technology allows you to transmit a complete MPX baseband in less than 384 kbps!
Do I have to use a 192 kHz audio card?
If you are generating MPX for FM, yes. The MPX baseband can extend out slightly
beyond 92 kHz. (Warning: Math alert) Our good friend Nyquist tells us that to faithfully
reproduce a given audio frequency when sampled digitally, the sampling rate must be at
least twice that frequency…That gives us an audio frequency response out to 96 kHz at a
192 kHz sampling rate, or just enough to cover the MPX baseband.
Is there a list of recommended audio cards?
At this time the only “tested and approved” cards are the ones mentioned earlier (AudioScience 5811 Hardware rev B2 or later, various models from Marian). While any
card capable of 192 kHz operation should work, quality varies. We will make additional
recommendations available as cards are tested.
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