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Volt-front Low-Active.jpg MULTI-USE AUDIO PROCESSOR INSTALLATION AND USERS GUIDE User Manual • July 2017 Software Version 1.1 DSP|Cores: FM Stereo, AM, HD-Pro, SG For Part Number: 2001-00439 OmniaLogo.png...
VOLT MANUAL User Warnings and Contact Info The installation and service instructions in this manual are for use by qualified personnel only. To avoid electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
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330, Boston, MA 02111-1307 USA. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Links to the GNU GPL and other modules used under license can be found in the About screen of the VOLT Remote Control web interface.
USA Eastern Time, Monday through Friday. By Email. Non-emergency technical support is available at Support@TelosAlliance.com. By Web The Omnia Web site has a variety of information that may be useful for product selection and support. The URL is http://www.Telosalliance.com/Omnia SERVICE You must contact Telos Alliance before returning any equipment for factory service.
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AoIP, so that all types of broadcasters can excel in this ever-evolving digital world. Omnia Audio not only lets you stand out on the dial with your unique signature sound via legendary audio processors, audio codecs, and microphone processing, it lets you give your listeners a better streaming experience across devices with innovative stream encoding / processing software and hardware.
Easy setup without sacrificing your ability to customize exactly the sound you want, and ♦ Future-proof versatility. ♦ Omnia VOLT is… a signal that jumps out of listeners’ radios. With the pristine, warm Omnia sound broadcasters love. A new generation Frank Foti-designed Clipper for stronger on-air sound without grunge. ♦...
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FM Analog, HD/DAB/streaming, and AM Analog . This separation lets us allocate processing power where it’ll do the most good. 1 SSBSC and “One Louder” are available only when VOLT is being used as a standalone stereo generation at the transmitter.
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Omnia VOLT is… fast setup and ease-of-use, while giving you absolute control of every important parameter. We’ve built VOLT for users who need to get results fast, and for those who like to customize their station’s sound. You can get VOLT on the air in minutes, select presets that have been designed for today’s stations and programming, create a unique sonic personality with just a few...
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Reboot. It’s that simple! ♦ You can switch applications whenever your needs change. Or keep a spare Omnia VOLT as backup for every one of your standby processors—and your stereo generator—in all your stations! DSP|Core is almost something for nothing! There are just two small caveats: 1.
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CHAPTER 1 | Omnia VOLT installs quickly, with setup and convenience features for today’s broadcaster: VOLT includes a built-in HTML-5 server for full control from any computer, tablet, or ♦ smartphone… it doesn’t need Java or special plug-ins, so there’s no worry about those vulnerabilities.
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VOLT DSP normally used for audio processing, to give you one of the most powerful standalone stereo generators available. Use an FM+SG VOLT pair to create an even more powerful airchain than a single Volt alone, or use VOLT: SG as a companion stereo generator for any processor back at the studio. VOLT: SG includes: SSBSC support lets you select Single Sideband suppressed carrier for more multipath ♦...
2 In some stations, this may be the normal mode. So we build sophisticated devices that can be used quickly and intuitively. But VOLT is also powerful and versatile: if you use this manual, you’ll learn all the other useful...
Quick Step-By-Step These dozen (or fewer, depending on setup) steps assume you’re running VOLT from its front panel. There’s a tutorial on using the red jog wheel, and maps of VOLT’s LCD menus, in the Front Panel chapter 1. Install VOLT in your rack, connecting audio input and outputs appropriate for your sys- tem.
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If you’re running VOLT’s HD Pro DSP|Core: 7. If you are using your Volt as a processor for HD Radio, DAB, streaming, or syndicated program production, you’re ready for powerful processing right from the front panel. In addition, VOLT’s Web-based remote control lets you adjust these options from a connected...
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–12 dBFS. If you’re feeding VOLT: SG via analog, set your processor’s peak output level to 10 dBu. –12 dBFS. 9. Set VOLT’s In/Out > Input > Level for the input you’re using to 0.0 dB, as a starting value. Feed typical program material, and fine-tune VOLT’s input level so the meters are just flashing only the -12 LED.
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1. Navigate to In/Out > Save IO Config, and provide a name for the signal routing setup you just created. 2. Read the rest of this manual. 3. Learn how to shape your sound with the best Omnia processing for your station and mar- ket. Take the time to experiment, and enjoy the results!
Livewire AoIP can be used as a high reliability, lossless STL. It lets you feed a VOLT at the transmitter using Livewire Xnode at the studio, or use VOLT at the studio to send processed AoIP audio to the transmitter. The Livewire capability built into every VOLT lets you take advantage of today’s faster and cheaper IP bandwidth, with ever-increasing STL options.
That distributes the weight better. Live studio? VOLT does not have an internal fan, and can be located near a live mic. This makes our HD Pro DSP|Core version ideal for high quality podcasting and other small operations.
24 dB range. 9 VOLT: SG is designed for advanced FM Stereo generation at the transmitter, with a separate audio processor feeding it (usually via an STL from the station). It does not do any internal audio processing. Its audio outputs monitor the input signal, and input level adjustment or de-emphasis being applied.
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Even if you’re just using VOLT to feed recorders and headphones in your station, a polarity error on either or both channels can generate complaints from the talent. That’s because their phones won’t match the bone conduction they’re used to hearing when they talk.
10V and .25 V p-p for 8.6% injection on a 3.6 V composite output. 19k Sync Out This is a TTL-level 19 kHz square wave, locked to VOLT’s stereo pilot, for use as a reference for most RDS or SCA generators that operate at multiples of the 19 kHz pilot frequency.
Livewire documentation, for details. Power Connector VOLT automatically adapts to 50 or 60 Hz power at any voltage between 90 – 240 VAC. Nom- inal power is 1A at 110 V, .5A at 240 V. Actual consumption is around 15 watts during normal operation.
CHAPTER 4 | Front Panel and LCD You can get VOLT operational, select a preset, and flexibly adjust it for your station’s sound and market …in minutes… entirely from the front panel! Omnia’s exclusive QuickTweak system lets you completely customize important internal processing parameters, including some that can’t be...
CHAPTER 4 | How are they listening? You can use headphones to verify signals or as a rough check on VOLT’s processing. But we don’t recommend using phones for fine-tuning your station’s sound… In our experience, dynamics per- ceived through headphones are different from those heard over speakers, and adjustments made over headphones may be too subtle for loudspeaker use.
FRONT PANEL AND LCD CHAPTER 4 | The GR meters are not active when running VOLT: SG, since that DSP|Core does not provide AGC or audio limiting. The right-most three meters indicate output levels for the Left and Right channels (calibrated from -28 to 0 dBFS), and for the composite output (calibrated 0 to 100%).
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FRONT PANEL AND LCD CHAPTER 4 | Navigating LCD Menus The Jog wheel lets you navigate around front panel menus, make selections, and adjust values. A screen might display possible submenus, like this one: Menu choices Selected choice I n p u t / O u t p u t P r o c e s s i n g A d m i n i s t r a t i v e L o c k F r o n t P a n e l...
Working with presets VOLT can store an almost unlimited number of files for instant recall of input/output setup, processing settings, and composite generator parameters. These files can be saved, loaded, renamed, or deleted from the front panel.
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You might want to make a copy of the relevant maps, and keep them near your VOLT. VOLT’s front panel LCD menus are designed to get you up and running quickly while you’re at the hardware, and let you fine tune VOLT’s processing using QuickTweak.
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FRONT PANEL AND LCD CHAPTER 4 | Input Menu Failover Choices Omnia.VOLT Input Src [Ana|AES|Livew] Failover time [0 - 60 sec] Front Panel Menus Failover Opts Fail back time [.5 - 30 sec] Anlg Level [-12 - +12 dB] Abs Thresh [-60 - -24 dB]...
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FRONT PANEL AND LCD CHAPTER 4 | Input Menu Failover Choices Omnia.VOLT Input Src [Ana|AES|Livew] Failover time [0 - 60 sec] Front Panel Menus Failover Opts Fail back time [.5 - 30 sec] Anlg Level [-12 - +12 dB] Abs Thresh [-60 - -24 dB]...
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FRONT PANEL AND LCD CHAPTER 4 | LCD1.1HD Input Menu Failover Choices Omnia.VOLT Input Src [Ana|AES|Livew] Failover time [0 - 60 sec] Front Panel Menus Failover Opts Fail back time [.5 - 30 sec] Anlg Level [-12 - +12 dB]...
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FRONT PANEL AND LCD CHAPTER 4 | Adjust SG Menu Emph Std [75µS | 50 µS] Pre-emph [on | off] Omnia.VOLT Input LPF [15 kHz on | off] Front Panel Menus Separation [St |-3|-6| Mono] Comp Drive is fully distortion-cancelled...
VOLT can be controlled from a network-connected computer, tablet, or smart phone. Login is password-protected for security. The Remote Control works in real-time. You can read all of VOLT’s front-panel meters (with greater resolution than is possible with front-panel LEDs), and you can hear the results as you change processing settings.
If you are attempting to access Volt through a firewall, please be sure to allow access to ports 80 and 7999. VOLT uses HTML5, without Java or other plug-ins. Any modern browser should be able to access it from a computer, tablet, or smart phone.
Some browsers may display an insecure password or Not Secure warning when you ♦ try to enter the password. This is because VOLT does not have the kind of verified digital signature used by web commerce servers. You can ignore these warnings.
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Function or QuickTweak controls MainScreenCallouts1.1.pdf NOTE: The screenshots in this section are from VOLT’s FM Stereo DSP|Core. Other Cores may show other functions, but the arrangement will always be similar. A row of small meters stretches across the top of the screen, below these two buttons. They let you quickly check levels for input, output, and processing.
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The other meters—showing mostly light gray bars—are not normal level meters. The Composite meter on VOLT : FM shows the overall composite percentage, including ♦ any subcarrier applied at the rear panel. The Composite meter is before any output level control, and is calibrated 0 –...
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AES/EBU, and Livewire; including main and secondary sources). When the PROCESSING button is pressed on any VOLT running any DSP|Core (except for SG), a list of processing presets appears on the left side of the screen. These control all audio processing parameters, and with VOLT: FM, they also control the composite generator parame- ters.
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About the Latency Meta-buttons All digital processing takes time, even though a single operation might be measured in micro- seconds. VOLT uses a lot of processing. With every feature turned on, this can add up to a dozen PROCESSING milliseconds or more. In most applications, it won’t be enough to be noticeable… but some FM situations may require less latency.
Remote Screen functions change depending on the DSP|Core in use. These next pages are refer- ence maps for each of VOLT’s DSP|Cores, so you can find an adjustment quickly. You probably won’t need the maps after a couple of uses, because we’ve kept the layout as consis- tent and intuitive as possible.
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Xover selected, VOLT uses a special process Separation to reduce clipper distortion. This LowMid XO Freq Pilot Level requires extra processing cycles and MidHigh XO Freq Pilot Phase can add a few milliseconds of latency. (Block buttons continue next column) If extremely low latency is required, FM Options Omnia.VOLT Remote you can turn that feature off through BS-412 Engage this control, or through the controls in Control Map BS-412 Threshold the Processing>Latency menu. Insert Return Insert Send CORE Pre-emphasis Test Tone Version 1.1...
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Tight Threshold (Block buttons continue next column) AES Bass Girth Clip on Girth Threshold Signal A Level Signal B Level Clipper Sample Rate Omnia.VOLT Remote Clipper Drive Polarity Signal A Clipper Silk Polarity Signal B Control Map Livewire Signal A Level CORE Signal B Level Polarity Signal A Version 1.1...
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Composite Out #2 Level Sensus Level Warmth Sensus Frequency Separation Space-EFX Pilot Level Limiter Pilot Phase (Block buttons continue next column) Drive Output Options Release Omnia.VOLT Remote Test Tone Silk Final LPF Control Map The Final LPF setting is switchable between 4 kHz – 22 kHz, to avoid HD Pro CORE problems with low sample rates or low bitrate compression. It controls Version 1.1 settings in the multi-band crossover along with the final filter cutoff.
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Pilot Phase Failback Time Absolute Threshold Relative Threshold Levels AES Input Master AES Input Right Analog Input Master Analog Input Right Omnia.VOLT Remote Control Map LiveWire Input Master LiveWire Input Right Stereo Generator CORE OUTPUTS Version 1.1 Shows large audio meters for Analog, AES, and LiveWire; 0-100% meter for Composite.
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Remote | LiveWire | GPIO / Events | File Transfer | Update | Configuration | About | Logout and other devices—using Ethernet cables and switches . The screen includes fields for setting the name, channel, and mode for the signal coming from VOLT, and selecting a source and mode for the signal feeding VOLT. Livewire...
Preset files contain only ASCII data and are only a few kilobytes each, so they can be easily transferred over a network or downloaded from a group’s internal website or Telos’ public one. I/O configurations are saved in computers with an .oic suffix. Processing and VOLT: SG com- posite generator presets are saved with an .opr suffix.
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Main Menu | Remote | Presets | Update | Configuration | About | Logout | Update2.pdf 3. VOLT will do a basic check of the file, and then upload it. The screen will then change to show updating in progress. Update Initiated The file volt_hd_1.1r(58).oup, with size 2633381 bytes has been successfully uploaded.
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VOLT can hold two different DSP|Cores at the same time in two different banks. The firmware that’s currently on-air will remain active while the new Core is being loaded into the unused location replacing that bank’s firmware load.
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Configuration 6/29/2017 Remote Control for Omnia Volt Remote | LiveWire | GPIO / Events | File Transfer | Update | Configuration | About | Logout This screen lets you change network settings and password, select one of the two currently installed firmware packages to be activated at the next reboot, reboot the processor, and perform diagnostics when advised by our support team.
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VOLT I/O configurations and processing settings are not automatically loaded when you install a different DSP Core. If you want to switch VOLT’s function (EG: switching FM to AM), but might want to re-use its settings if you restore the original function, make sure you’ve save the i/o settings as a preset before rebooting.
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You can switch back and forth between Cores as needed, by using this screen and rebooting. 6/29/2017 Remote Control for Omnia Volt Remote | LiveWire | GPIO / Events | File Transfer | Update | Configuration | About | Logout ...
DSP, refined some of the most popular Omnia algorithms, and developed brand new ones. The best way to learn how to adjust VOLT for your station and market is to work with it, using this chapter as a guide.
So try a bunch: it takes just a moment to load each preset, and loading doesn’t interrupt signal flow. In fact, listening to all of the included factory presets is the best way to get a feel for what VOLT can do.
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“Lows” and “Highs” are a lot more complex, internally, than the simple tone controls their names suggest. And we’ve had to invent names for some other VOLT parameters as well, because of the new algorithms they control. If you’re not sure what a knob does, check the glossary at the end of this chapter.
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In many cases, QuickTweak will give you the sound you want. With some formats and markets, you might want to get a bit deeper. VOLT has more than 140 routing and processing settings. Feel free to explore all of them in your search for sonic perfection.
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♦ development with very good monitor speakers, so you can hear and control every aspect of VOLT’s processing. But after you’ve put your secret sauce on the air, you might want to listen in your car ! VOLT’s HTML5 Remote Control can be accessed in real-time from the browser in your smartphone or tablet, so you can make adjustments from anywhere.
CHRHot was ideal for a lite AC format. If you’re in a very competitive market where everything is cranked to within an inch of its life, RockNRoll might sound laid back and relaxing! Please, please explore all of the presets available to you within VOLT. Look for additional ones online on VOLT’s product specific webpage (https://www.telosalliance.com/Omnia/Volt-Au- dio-Processor)..
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A preset designed to mimic the warm tones of its analog older sibling, Cornelius’ Gould’s Audio Chameleon audio processor. CircuitBreaker A nod to the Omnia.6exi, a great starting point if you favor Omnia.6. CircuitBreakerWm CGSmooth A nice starting point for various types of AC formats.
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Dense, but has a happy “smiley face” EQ. Pleasant, upfront highs; a convincing low end; and a ton of loudness. What’s not to love? HotWire A nod to the HotMix presets on the traditional ‘orange’ Omnia.11. PolyFuse Another Omnia.6 starting preset, with a serious amount of processing.
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VOLT PROCESSING CHAPTER 6 | Talk presets TalkInYoFace For FM stations with lots of spoken-word programming. TalkInYourEar TalkLikeNPR TalkToMeFM 50 µs presets 50us Presets with a suffix were designed for countries where 50µs pre-emphasis is standard. But you might also want to use them in 75µs countries, if you prefer a less-bright sound.
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OldiesNB Order up your malts and put on the poodle skirts! The hits of radio’s golden era are on the air again. Oldies radio through VOLT: AM take you OldiesWB right back to your “best old days”.
Volt Processing Block Diagrams A lot of VOLT’s processing power depends on how its algorithms are specialized for each differ- ent DSP|Core function, and how signals are routed from one algorithm to the next.
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VOLT PROCESSING CHAPTER 6 | VoltFM1.1Block.pdf...
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VOLT PROCESSING CHAPTER 6 | VoltAM1.1Block.pdf...
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VOLT PROCESSING CHAPTER 6 | VoltHD1.1Block.pdf...
CHAPTER 6 | VOLT Processing Terminology Most of VOLT’s controls are labeled with standard studio or processing definitions, and should be intuitive to any engineer. But a few names are our own invention… because they’re con- trolling algorithms of our own invention. Here’s a glossary of those terms.
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Deep Bass: Adds psychoacoustic bump by enhancing just the very low frequencies, such as kick drum fundamentals. HF-EQ Pre or Post [AM Only]: VOLT provides additional shelf equalizers, each with switchable frequency and gain, both before and after the 5-band limiter. If you need additional brightness, you may find that splitting the boost between these two stages gives you the best combination of “sparkle”...
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LPF setting also changes the frequencies used in its multi-band crossover, to give you maximum control over program loudness below the desired cutoff. Sensus [HD-Pro Only]: Omnia’s exclusive Sensus algorithms actually predict how HD, DRM, DAB, or streaming data reduction will affect your sound. They pre-condition your signal, making compression sound better—even at low bitrates.
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Then use VOLT: SG’s composite clipper as final protection for your overall signal. 21 OneLouder technology requires a lot of DSP power, and is available only in VOLT: SG. While there’s a stereo generator in VOLT: FM, that unit has to also allocate DSP for multiband level processing and enhancement...
Features and operations of VOLT are determined largely by software. Telos strives to provide the most stable and feature-rich software available. We encourage you to check for software updates from time to time by visiting our website or by contacting us directly.
CHAPTER 8 | Technical Specifications We are constantly working to improve our products. Specifications and features are subject to change without notice. Audio quality is measured through VOLT’s entire chain but with processing controls turned off. System Frequency Response: User selection of flat, 50 µs, or 75 µs pre-emphasis curve within ± 0.50 dB, 30 Hz to 15 kHz.
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TECHNICAL SPECIFICATIONS CHAPTER 8 | Analog: Left and Right Stereo on EMI-suppressed XLR-3, balanced with “pin 2 hot”. Input: Electronic balanced, impedance 10kΩ, nominal +4 dBu, max +22 dBu. Output: impedance 20Ω for >600Ω load, +4 dBu nominal, +22 dBu peak. Converters: 24 bit, 128x oversampled with linear-phase anti-aliasing filter.
5-YEAR WARRANTY CHAPTER 9 | Telos Alliance Warranty Telos Alliance Limited Warranty Telos Alliance Radio Division has an industry-leading five-year warranty. As a company, we are commited to our products and the pursuit of providing better quality to our customers. Find the Warranty online at www.telosalliance.com/warranty.
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The “GPIO / Events” page on VOLT’s web-based interface allows this to be done easily. It also allows other LiveWire GPI ports to be patched to VOLT’s virtual GPO ports so that the corresponding function could be remotely controlled. Finally, it provides a means to specify which presets can be selected by means of GPIO events.
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The following 4 GPO ports are permanently defined. Their function cannot be changed. GPO 1 -- reserved (because VOLT has no physical GPO) GPO 2 -- preset selection...
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93. It is implemented using the LWRP GPO <n> CMD: command. Arguments are given in the LWRP command (in quotes after CMD: ) to control the Omnia. Each GPO port maintains the same function as listed above for the pin-based protocol, and will only accept CMD: argu- ments that relate to that function.
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GPIO OPERATION APPENDIX A | GPO 3: -- PRI <src> -- Select the given source, <src>, as the primary input source. <src> must be one of: ANA (for analog), AES (for AES/EBU), or LWR (for LiveWire). -- SEC <src> -- Select the given source, <src>, as the secondary input source that will be used in case of failover.
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