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Before operation, Surround sound – Sherwood R-903 User Manual

Page 17

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DTS Neo : 6™ surround

This mode applies conventional 2-channel signals such as
digital PCM or analog stereo signals to the high precision
digital matrix decoder used for DTS-ES Matrix 6.1 to
achieve 6.1-channel surround playback. DTS Neo : 6
surround includes two modes for selecting the optimum
decoding for the signal source.

DTS Neo : 6 Cinema

This mode is optimum for playing movies. Decoding is
performed with emphasis on separation performance to
achieve the same atmosphere with 2-channel sources as
with 6.1-channel sources.

DTS Neo : 6 Music

This mode is suited mainly for playing music. The front left
and front right signals bypass the decoder and are played
directly so there is no loss of sound quality, and the effect
of the surround signals from the center, surround left,
surround right and surround back channels adds a natural
sense of expansion to the sound field.

“DTS”, “DTS-ES Extended Surround” and “Neo : 6” are
trademarks of Digital Theater Systems,Inc.

Dolby Digital

Dolby Digital is the multi- channel digital signal format
developed by Dolby Laboratories. Discs bearing the
“ ” includes the recording of up to 5.1 channels of

digital signals, which can reproduce much better sound
quality, spatial expansion and dynamic range
characteristics than the previous Dolby Surround effect.

Dolby Digital EX

This mode creates the back (sometimes also referred to as
“surround center”) signals from the surround left and right
signals in Dolby Digital 5.1 channel source using a matrix
decoder and provides 6.1 channel surround playback. For
the best results, this mode should be selected during
playback of sources(bearing the “ ”) recorded in

Dolby Digital Surround EX. With this additional channel,
you can experience more dynamic and realistic moving
sound especially.
When Dolby Digital EX sources are decoded with a Dolby
Digital EX decoder, the format is automatically detected
upon decoding and the Dolby Digital EX mode is selected.
However, some Dolby Digital EX sources may be detected
as Dolby Digital sources. In this case, the Dolby Digital EX
mode should be selected manually to play these sources.

Before Operation

SURROUND SOUND

• This receiver incorporates a sophisticated Digital Signal Processor that allows you to create optimum sound

quality and sound atmosphere in your personal Home Theater.

DTS Digital Surround

DTS Digital Surround(also called simply DTS) is a multi-
channel digital signal format which can handle higher data
rates than Dolby Digital. Although both Dolby Digital and
DTS are 5.1 channel formats, discs bearing the “ ”

are generally thought to provide better sound quality due to
the lower audio compression required.
It also provides wide dynamic range and separation,
resulting in magnificent sound.

DTS - ES Extended Surround™

(

)

This is a new multi channel digital signal format which
greatly improves the 360- degree surround impression and
space expression thanks to further expanded surround
signals, offering high compatibility with the conventional
DTS format.
In addition to the 5.1 channels, DTS-ES Extended
Surround also offers the surround back (sometimes also
referred to as “surround center”) 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 follows:

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.
Though maximum performance is achieved when sound
tracks recorded with this system are played using a DTS -ES
decoder, when played with a conventional DTS decoder, the
surround back channel signals are automatically downmixed
to the surround left and surround right channels so that none
of the signal components are lost.

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.
Because the bit stream format is 100% compatible with
conventional DTS signals, the effect of the DTS-ES Matrix 6.1
format can be achieved even with DTS 5.1- channel signal
sources. Of course, it is possible to play DTS-ES Matrix 6.1 -
channel signal sources with a DTS 5.1 - channel decoder.
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.
However, some DTS - ES Matrix 6.1 sources may be
detected as DTS sources. In this case, the DTS - ES Matrix
mode should be selected manually to play these sources.

Surround modes