Crestron
Surround Sound
Primer
7.1 Soundfield (Subwoofer not shown)
DTS
DTS Coherent Acoustics is a variable/high bit rate codec for discrete
5.1 multichannel digital audio. DTS Coherent Acoustics is a competing
codec to Dolby Laboratories AC-3®. DTS encoding requires less
compression of the signal which provides improved detail, clarity and
dynamics.
DTS-ES
DTS-ES is a digital matrix decoder developed by DTS for back channel
5.1 surround sound in theatres. It is comparable to Dolby Digital
Surround EX soundtracks and is a competitor to the Dolby SA10
adapter, the proprietary back surround decoder for cinemas.
Coherent Acoustics is a flexible audio coding scheme, allowing for a
wide range of bit resolutions and sampling rates. Its operation ranges
from low bit rate, lossy perceptual coding (meaning that it reduces data
based on psychoacoustics principles) to high quality, lossless coding
with variable bit rates. Encoded data rates of 32 to 4096kbps, sampling
rates of 8 to 192kHz, resolutions of 16- to 24-bit and up to eight
channels are possible.
DTS-ES for home theater features:
•
The back channel is matrixed in the left and right surround
channels.
•
A discrete back channel can be optionally encoded.
•
A DTS-ES 6.1 discrete decoder plays the discrete back
channel and subtracts the encoded discrete back channel out of
the matrixed left and right surround channels. This is the only
decoding mode with a discrete rear speaker for the home.
•
DTS-ES is fully compatible with 6.1 and 5.1 matrix decoders.
Primer – DOC. 6122
Surround Sound
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