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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™
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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 must be selected manually
to play these sources.
In DTS-ES Discrete 6.1, DTS -ES Matrix 6.1 sources, the surround back
channel is monaural, but can be played through a single(in 6.1 mode) or
two surround back speakers(in 7.1 mode) depending on the surround
back speaker setting.(For details, refer to “SETTING THE SPEAKER
SETUP” on page 34.)
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 Movie
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 Pro Logic
Dolby Pro Logic is a specially encoded two channel surround format
which consists of four channels ( front left, center, front right and
surround). Sources bearing the “ ” provide the
theater - like surround sound.
The surround channel is monaural, but is played through both surround speakers.
Dolby Pro Logic II surround
This mode applies conventional 2- channel signals such as digital PCM or
analog stereo signals as well as Dolby Surround signals, etc. to surround
processing to offer improvements over conventional Dolby Pro Logic
circuits. Dolby Pro Logic II surround includes two modes as follows:
Dolby Pro Logic II MOVIE
When enjoying movies, this mode allows you to further enhance the
cinematic quality by adding processing that emphasizes the sounds of the
action special effects.
Dolby Pro Logic II MUSIC
When listening to music, this mode allows you to further enhance the
sound quality by adding processing that emphasizes the musical effects.
Dolby Virtual
This mode employs sophisticated digital processing to create the illusion of
“phantom” speakers, this mode allows you to experience surround sound
effects from Dolby Digital, Dolby Surround or 2-channel (recorded in digital
PCM or analog stereo) sources, through just a single pair of front speakers.
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic”, and the double - D symbol are trademarks of Dolby
Laboratories.
MPEG Multichannel
This mode is a surround system which faithfully reproduces the ambience and
dynamics of movie soundtracks and music alike. Though the number of audio
channels are same as Dolby Digital, discs bearing the “ ”
provides much better at locating individual sounds to the correct and stable
position in the sound stage.
Extra Surround 6.1/7.1
This mode extracts the surround back (sometimes also referred to as “surround
center”) signals from the surround left and surround right signals and
reproduces it as well as the original multichannel signals during playback of
multi-channel program sources recorded in DTS, Dolby Digital, etc.
Surround modes
DOLBY
D I G I T A L
DOLBY SURROUND
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SURROUND SOUND
This unit incorporates a sophisticated Digital Signal Processor that allows you to create optimum sound quality and sound
atmosphere in your personal Home Theater.