Coding Technologies & Orban Debut HDC Surround System for 5.1 Surround Sound Over HD Radio 
Home Theater News Music - Technology News
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Wednesday, 13 October 2004

Coding Technologies and Orban has debuted HDC Surround, a 5.1 channel audio solution for HD Radio. Built on top of the HDC codec already used by HD Radio, HDC Surround will enable stations to efficiently upgrade their HD Radio broadcasts to 5.1 channel surround sound while maintaining audio quality and compatibility for stereo-only receivers.

Built by Coding Technologies, the brains behind the HDC codec already in use by HD Radio, HDC Surround adds 5.1 channel capability to HDC. By building on HDC, HDC Surround provides a unique solution for backwards compatible 5.1 surround sound over HD Radio. This feature allows stations to upgrade their broadcasts to HDC Surround without negatively impacting their core stereo signal.

With the HDC Surround system, stations and receivers only need one codec to accomplish both stereo and 5.1 channel broadcasts over HD Radio. Existing receivers will receive the broadcast as stereo and HDC Surround enabled receivers will receive the same broadcast as 5.1 channel surround.

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