|Coding Technologies and DTS Debut Highly Efficient 5.1 Multi-channel Sound for HDTV Broadcasting|
|Home Theater News Music Servers/MP3 Players News|
|Written by AVRev.com|
|Monday, 24 April 2006|
At this year's NAB conference, Coding Technologies and DTS unveiled their combined aacPlus/DTS transcoding solution enabling high-quality 5.1 multi-channel sound for HDTV broadcasting at a fraction of the typically required transmission bandwidth. The new solution incorporates the highly efficient MPEG-4 aacPlus audio codec with the well known DTS audio technology available in over 50 million DTS-enabled home theater receivers.
The new aacPlus/DTS solution enables broadcasters to profit from the bandwidth saving advantage of the aacPlus audio codec for over-the-air transmission and enables backwards compatibility by transcoding into DTS within the set top box. Independent tests have shown that aacPlus is the most efficient audio codec available today. Specifically for 5.1 surround sound, 160 kbps aacPlus provides the same audio quality as 384 kbps transmissions currently used in ATSC. This gain of efficiency frees up valuable transmission bandwidth, thereby allowing broadcasters to add new video channels, secondary audio, such as multilingual programming to their existing channels, or simply cut down on transmission costs.