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DTS Digital Surround
DTS Digital Surround(also called simply DTS) is a multi-channel digital
signal format which can handle more amount of data than Dolby
Digital, providing better audio quality. Though the number of audio
channels is 5.1 (front left, front right, center, surround left, surround
right and Low Frequency Effects) which is same as Dolby Digital, discs
bearing the “ ” provides fat sound and better signal - to -
noise ratio, thanks to the lower audio compression ratio format.
It also provides wide dynamic range and better 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
surronnd 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 36.)
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 two 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 the 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 is 5.1 which is 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
18
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.