DTS And Coding Technologies Launch MPEG-4 Surround Sound Solution For HDTV
DTS, Inc. and Coding Technologies will stage the European launch of their 5.1 multi-channel audio transcoding system for HD broadcasting at IBC (RAI Amsterdam, 8-12 September 2006), with both companies demonstrating the advances of the system, in terms of bandwidth efficiency and perceived audio quality.
The DTS / Coding Technologies transcoding scheme integrates the efficiencies of Coding Technologies’ MPEG-4 HE-AAC (aka aacPlus) development – an integral part of the MPEG open standard – with the transparent decoding of DTS’ Coherent Acoustics algorithm, running at 1.5 Mbps. Specifically for 5.1 surround sound, 160 kbps aacPlus is said to provide the same audio quality as 384 kbps transmissions of competing formats currently employed within ATSC and DVB architectures.
This gain in efficiency frees up significant amounts of transmission bandwidth, allowing broadcasters to enhance their transmissions with secondary audio channels (such as multi-lingual versions) or to significantly reduce transmission costs. When employed throughout the programme multiplexes, these efficiency savings have a dramatic impact – enabling the transmission of entire new video channels over the network bandwidth.
Throughout IBC, DTS and Coding Technologies will be demonstrating the quality of the transcoded aacPlus / DTS surround sound signal in conjunction with the DVB, featuring HD video material from BT’s This Binary Universe, the latest release on the DTS Entertainment music label.
Source: DTS, Inc.
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