A Standard for MPX Over AES?

Nautel and Omnia hope other broadcast manufacturers will adopt their recent idea, so the companies have released a statement proposing that their digital composite interface be taken up as an open standard. “The long sought after goal of a fully digital transmission chain which doesn’t sacrifice loudness has now been realized due to the collaboration between Omnia and Nautel,” they wrote.

They hope the technology — called Omnia Direct, in their own implementation — will be adopted by other processing and transmitter manufacturers. Nautel President/CEO Peter Conlon stated that through “opening up the implementation details,” other companies can develop interoperable solutions. “Customers will have the choice of their transmitter and processor, and be able to use digital multiplex, and the industry can avoid the possibility of incompatible standards.”

The technology permits one AES-EBU cable between a processor and a transmitter to carry the baseband signal in digital form, doing away with the need for an analog composite signal. The suppliers say that this eliminates noise and distortion of A/D converters and reduces potential overshoots while ensuring FCC mask compliance. Telos Alliance CEO Frank Foti of Omnia Audio calls this “the digital equivalent of the analog BNC-to-BNC composite (MPX) connection,” and said it generated strong interest at the recent NAB Show.

Foti said Omnia would share technical details with any interested party, who should contact Cornelius Gould at email cornelius.gould@telosalliance.com.

Omnia, Nautel Collaborate on Composite Interface


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