Vienna, Austria (May 9, 2007)–At the AES Convention in Vienna, Coding Technologies, together with Philips Applied Technologies and Linear Acoustic, announced the availability of a new professional broadcasting hardware/software solution based on MPEG Surround.
The new solution enables the contribution and distribution of high quality multichannel audio over existing stereo infrastructures. Linear Acoustic will be the first company to offer the new solution in their professional audio processing products.
Developed by Coding Technologies, Agere, Philips and Fraunhofer, MPEG Surround is a recently ISO standardized, codec agnostic compression technique for delivering multi-channel audio signals. In the new solution, MPEG Surround creates a stereo audio signal from a multichannel audio source, and a small set of parameters describing the original surround sound signal.
The new solution employs MPEG Surround in conjunction with a digital PCM stereo audio signal and a technique from Philips Applied Technologies known as “Buried Data technique” to embed the MPEG Surround parameters into a fully backwards compatible PCM stereo audio signal. An MPEG Surround decoder can then recreate the full multichannel audio based on the embedded MPEG Surround parameters.
A demonstration at the AES Convention featured an upMAX-MPS professional broadcasting encoder and decoder from Linear Acoustic, operating the MPEG Surround and Buried Data technique to transport the multichannel audio signal in high quality over a single AES/EBU stereo audio connection.
The combined MPEG Surround/PCM stereo audio combination represents the world’s first solution for deploying high quality multi-channel audio for contribution and distribution in a professional broadcasting environment.
It is expected that such a solution will serve remote event locations with multichannel audio production facilities such as sports venues or concert halls. The solution enables broadcasters to transport stereo and multichannel audio, both in the highest possible quality, over a single AES/EBU connection to the studio, without any necessary change of the existing stereo infrastructure. The audio signal is then further utilized and delivered in plain stereo or multichannel as required.
Royal Philips Electronics