Omnia.9sg Stereo Encoder

Stereo Coders
Omnia | Broadcast Audio Processing
Ideaal voor toepassingen waarbij de uiteindelijke limiter en stereo encoder los van de hoofd audioprocessor moet zijn, de Omnia.9sg is gebaseerd op dezelfde limiter, clipper en stereo generator technologie uit de Omnia.9 audio processor.
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RDS Encoder Option

Omnia.9sg Stereo Encoder

Since the late 1970’s, most FM audio processors have been “all-in-one” units; audio conditioning, multiband AGC, multiband limiting, final clipping, and stereo (MPX) encoding are all in the same chassis.  This approach offers many benefits in convenience, performance, and cost.  This one-box design has also worked well with traditional composite STL systems.
In many cases, it’s advantageous to place the main audio processor at the studios while the final clipper and stereo generator operate at the transmitter site. This includes cases where the STL uses discrete analog or AES audio rather than composite. Coded audio links cause slight audio overshoots, robbing audio loudness from the final transmitted signal.  Proper FM clipping is critical to apply after the coded link, and sophisticated stereo signal generation can add 1 dB of loudness without any audio degradation.

Some FM broadcasters are transmitting the same audio from two or more tower sites.  In these cases, one primary audio processor feeds a WAN or satellite distribution system, with Omnia.9sg processors at each transmission site.

Whether the transport is RF, dedicated digital lines, or an IP connection, including Public Internet, there are benefits to physically “split” some of the audio processing functions.  However, using discrete links implies that the advantages of sophisticated MPX encoders may be lost.  While many FM exciters offer analog or AES digital inputs, their own stereo generators cannot perform as well, or offer the advantages of the latest stereo “embedding” technology available in modern audio processors like those from Omnia.  

Other broadcasters are sending the same program audio to two or more transmitter sites.  To reduce costs while maintaining great audio and modulation, they want to place one main audio processor at the studio, distribute that “processed audio” via discrete STL methods, and provide final processing plus stereo encoding at each transmitter site to maintain ultimate loudness control.

Transmitter sites offer their own challenges in terms of available space, privacy, and security.  In these cases, a smaller and less expensive audio clipper and stereo encoder makes sense.
Meet the new Omnia.9sg - a powerful , sophisticated stereo generator with audio processing features that bring real utility and dial presence to this 1 RU device.
Omnia.9sg brings the same acclaimed clipper, limiter, and stereo generator technology in the Omnia.9 to a standalone box—but that isn’t all it does…We brought a few other tricks from the Omnia.9 along for the ride.

  • Psychoacoustic Composite Embedder
  • Psychoacoustically Controlled Distortion-Masking Clipper
  • Full IP remote control with remote audio streaming
  • Selectable SSB (Single Sideband) stereo encoder
  • Analysis tools for internal or external composite signals
  • Optional RDS encoder, dynamically updateable
  • Selectable SSB (Single Sideband) stereo encoder
  • HTTP push support for automation, such as dynamic RDS and streaming song titles, preset recall
  • Dual independent power supplies
  • Composite pass-through (relay bypass) for your backup processor
  • Omnia Toolbox - visual audio analysis tools
  • RF Bandwidth Controller with internal RF simulation & feedback
  • ITU-BS.412 MPX Power Controller
  • Auto Pilot Stereo/Mono Switching
  • Analog and AES3 audio inputs & outputs
  • 2x Composite inputs
  • 2x Composite outputs (1 swappable to 19kHz reference output)
  • Composite pass-through (relay bypass) for your backup processor
Frequency Response:
  • /- .5 dB 20 Hz to 15 kHz
Signal-Noise Ratio: 
  • Greater than -80 dBu de-emphasized, 20 Hz to 15 kHz
Stereo Separation: 
  • 65dB minimum, 20 Hz to 15 kHz, 70 dB typical
Stereo Baseband Output:
  • Adjustable from -2 dBu to 22 dBu (0.1 dB increments) into 600-Ohms, 20-Ohm output impedance
Analog Inputs: 
  • Two balanced, EMI filtered XLR connectors
Digital Inputs: 
  • AES/EBU In & External Sync
Composite I/O: 
  • Four 75-Ohm BNC female, two inputs, two outputs
Remote Control: 
  • RJ45 supporting 100 Base-T Ethernet connections
Power Requirements: 
  • 100-264 VAC, 47-63 Hz autosensing
Power Connector: 
  • IEC male, detachable 3-wire power cord supplied
  • Operating: 0 to 50 degrees C
  • Non-Operating: -20 to 70 degrees C
  • North America: FCC and CE tested and compliant, power supply is UL approved.
  • Europe: Complies with the European Union Directive 2002/95/EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS), as amended by Commission Decisions 2005/618/EC, 2005/717/ EC, 2005/747/EC (RoHS Directive), and WEEE.