Digital Theater Systems (DTS) DTS Coherent Acoustics coding system is the mandatory audio technology for the Blu-Ray Disc (BD) and the High Definition Digital Versatile Disc (HD-DVD). In addition to DTS’ core technology, its extension technologies, known as DTS++, have also been selected as options to provide higher data rates, lossless operation and additional channels.
DTS Coherent Acoustics was introduced in 1996 and was designed to be both extensible and backward-compatible based on its core + extension structure. Following extensions to the original 5.1-channel format include an additional discrete channel for 6.1-channel audio (DTS-ES), and a 96 kHz sampling rate for high-resolution audio (DTS 96/24.) DTS audio tracks using either of these enhancements and can be played on any existing DTS decoder, making them compatible with more than 280 million DTS-licensed consumer electronics products.
The added space and bandwidth provided by HD-DVD and Blu-ray Disc allow the DTS audio tracks to be encoded at data rates greater than 1.5 Mb/s, to fully lossless operation. Both the mandatory DTS core technology and optional higher sampling rates like DTS 96/24 and additional channels up to 7.1, permit Blu-ray Disc and HD-DVD formats to offer DTS' premium audio quality to consumers while retaining compatibility with all existing DTS decoders.
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