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Additional Information Additional Information
2 Sources recorded in Dolby Surround
Sources recorded in Dolby Surround are indicated with the
following logo marks.
Dolby Surround support mark:
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories.
The AVR-2807 is equipped with a digital signal processing circuit
that lets you play program sources in the surround mode to
achieve the same sense of presence as in a movie theater.
Surround
Dolby Surround
[1] Dolby Digital
Dolby Digital is the multi-channel digital signal format developed
by Dolby Laboratories.
A total of 5.1-channels are played: 3 front channels (“FL”, “FR”
and “C”), 2 surround channels (“SL” and “SR”) and the “LFE”
channel for low frequencies.
Because of this, there is no crosstalk between channels and a
realistic sound field with a “three-dimensional” feeling (sense of
distance, movement and positioning) is achieved.
A real, overpowering sense of presence is achieved when
playing movie sources in AV rooms as well.
[2] Dolby Pro LogicII
Dolby Pro LogicII is a matrix decoding technology developed by
Dolby Laboratories. Regular music such as that on CDs is
encoded into 5 channels to achieve an excellent surround effect.
The surround channel signals are converted into stereo and full
band signals (with a frequency response of 20 Hz to 20 kHz or
greater) to create a “three-dimensional” sound image offering a
rich sense of presence for all stereo sources.
[3] Dolby Pro LogicIIx
Dolby Pro LogicIIx is a further improved version of the Dolby Pro
LogicII matrix decoding technology.
Audio signals recorded in 2 channels are decoded to achieve a
natural sound with up to 7.1-channels.
There are 3 modes: “Music” suited for playing music, “Cinema”
suited for playing movies, and “Game” which is optimum for
playing games.
MANUFACTURED UNDER LICENSE FROM DIGITAL
THEATER SYSTEMS, INC.
U.S. PAT. NO’S. 5,451,942; 5,956,674; 5,974,380; 5,978,762;
6,226,616; 6,487,535 AND OTHER U.S. AND WORLD–WIDE
PATENTS ISSUED AND PENDING.
“DTS”, “DTS–ES”, “Neo:6”, AND “DTS 96/24” ARE
TRADEMARKS OF DIGITAL THEATER SYSTEMS, INC. ©
1996, 2003 DIGITAL THEATER SYSTEMS, INC. ALL RIGHTS
RESERVED.
DTS Digital Surround
DTS Digital Surround is a digital surround format developed by
Digital Theater Systems of the United States.
The number of playback channels and the playing band is the
same as for Dolby Digital (5.1-channels).
The compression rate of the audio data when it was recorded on
the medium is lower than for Dolby Digital, so there is more
information when the data is decoded, resulting in richer, clearer
sound quality.
DTS-ES™
DTS-ES is a new surround format developed by Digital Theater
Systems.
A sound image and sense of positioning can be achieved by
adding a surround back (“SB”) channel to the conventional 5.1-
channels.
DTS-ES™ Discrete 6.1:
This is the latest format, in which all 6.1-channels, including the
“SB” channel, are recorded independently. Since the different
channels are independent, the sound can be designed with
total freedom.
DTS-ES™ Matrix 6.1:
With this format, the “SB” channel is matrix-encoded and
inserted into the “SL” and “SR” channels, then decoded for
the “SL”, “SR” and “SB” channels upon playback. This
achieves a surround sound more faithful to the artist’s sound
design intentions than with conventional 5.1- or 6.1-channel
systems.
DTS NEO:6 surround
This is a matrix decoding technology for 6.1-channel surround
playback of 2-channel sources.
The optimum decoding for the type of signal source to be played
can be selected. There are 2 modes.
DTS NEO:6 CINEMA:
This mode is suited for playing movies. It achieves the same
type of sound as in a movie theater, even with 2 channels.
DTS NEO:6 MUSIC:
This mode is suited for playing music. A natural sense of
expansion is added to the sound field.
DTS 96/24
DTS 96/24 is a multi-channel digital signal format developed by
Digital Theater Systems.
The sampling frequency is raised to achieve 5.1-channel playback
with high quality sound (sampling frequency: 96 kHz,
quantization: 24 bits).