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DTS, DTS-ES Extended Surround, and Neo:6 are registered trademarks of Digital Theater
Systems, Inc.
DTS-ES Extended Surround is a new multi-channel digital signal format developed by Digital
Theater Systems Inc. While offering high compatibility with the conventional DTS Digital
Surround format, DTS-ES Extended Surround greatly improves the 360-degree surround
impression and space expression thanks to further expanded surround signals. This format has
been used professionally in movie theaters since 1999. In addition to the 5.1 surround channels
(FL, FR, C, SL, SR and LFE), DTS-ES Extended Surround also offers the SB (Surround Back)
channel for surround playback with a total of 6.1 channels. DTS-ES Extended Surround includes
two signal formats with different surround signal recording methods, as DTS-ES Discrete 6.1 and
DTS-ES Matrix 6.1.
DTS, DTS-ES Extended Surround, and Neo:6 are registered trademarks of Digital Theater
Systems, Inc.
The stereo CD is a 16-bit medium with sampling at 44.1kHz. Professional audio has been 20- or
24-bit for some time, and there is increasing interest in higher sampling rates both for recording
and for delivery into the home. Greater bit depths provide extended dynamic range. Higher
sampling rates allow wider frequency response and the use of anti-alias and reconstruction filters
with more favorable aural characteristics. DTS 96/24 allows for 5.1channel sound tracks to be
encoded at a rate of 96kHz/24bits on DVD-Video titles. When DVD-video appeared, it became
possible to deliver 24-bit, 96 kHz audio into the home, but only in two channels, and with serious
limitations on picture. This capability has had little use. DVD-audio allows 96/24 in six channels,
but a new player is needed, and only analog outputs are provided, necessitating the use of the
D/A converters and the analog electronics provided in the player.
DTS 96/24 offers the following:
1. Sound quality transparent to the original 96/24 master.
2. Full backward compatibility with all existing decoders. (Existing decoders will output a 48
kHz signal)
3. No new player required: DTS 96/24 can be carried on DVD-video, or in the video zone of
DVD-audio, accessible to all DVD players.
4. 96/24 5.1 channel sound with full-quality full-motion video, for music programs and
motion picture soundtracks on DVD-video.
Dolby® TrueHD is Dolby’s next-generation lossless technology developed for high-definition disc-
based media. Dolby TrueHD delivers tantalizing sound that is bit-for-bit identical to the studio