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Surround Mode 3
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DTS (DTS Digital Surround)
During playback of a DVD disc recorded in DTS format, the
surround mode is set to DTS automatically.
DTS Digital Surround delivers up to 5.1 channels with lower
audio compression than Dolby Digital. It provides the clarity
and dynamics of the original master soundtrack.
DTS-ES (Extended Surround)
This is a new multi channel digital signal format that greatly
improves the 360-degree surround impression and space
expression thanks to further expanded surround signals. This
format is compatible with the conventional DTS format.
In addition to the 5.1 channels of DTS, DTS-ES also offers the
surround back (sometimes also referred to as "surround
center") channel for surround playback with a total of 6.1
channels. For the optimum playback of DTS-ES, you need 6
speakers and a powered sub-woofer.
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The surround back channel information is matrixed into the
surround left and right channels. When played with 5
speakers, the surround back channel signals are output from
the surround left and right speakers so that none of the signal
components are lost.
There are two formats for DTS-ES:
DTS-ES Discrete 6.1
Because the signals for 6.1 channels (including the surround
back channel) are fully independent, it is possible to achieve a
sense that the acoustic image are moving about freely among
the background sounds surrounding the listener from 360
degrees.
DTS-ES Matrix 6.1
With this format, the additional surround back channel signals
undergo matrix encoding and are input to the surround left and
surround right channels beforehand. During playback, they are
decoded to the surround left, surround right and surround
back channels.
When DTS-ES Discrete 6.1 or Matrix 6.1 sources are decoded
with a DTS-ES decoder, the format is automatically detected
upon decoding and the optimum surround mode is selected.