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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. Discs bearing the " " include the recording of
up to 5.1 channels of digital signals, which can be 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.
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 96/24
Conventional surround formats used sampling frequencies
of 48 or 44.1 kHz, so 20 kHz was about the maximum
playback signal frequency. With DTS 96/24, the sampling
frequency is increased to 96 or 88.2 kHz to achieve a wide
frequency range of over 40 kHz. In addition, this format has
a resolution of 24 bits, resulting in the same frequency band
and dynamic range as 96kHz / 24 bit PCM signals.
As with conventional DTS surround, DTS 96/24 is
compatible with a maximum of 5.1 channels. DTS 96/24 is
fully compatible with the conventional DTS surround format,
so DTS 96/24 sources can be played using a conventional
DTS 5.1 channel decoder.
"DTS", "DTS-ES", "DTS 96/24" 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 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.
Surround modes
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.