WELCOME
11
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.
Summary of Contents for Cinema 12
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