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Front speaker
Surround speaker
G2H When not using surround back speakers
Subwoofer
Surround speakers
Monitor
Center speaker
Front speakers
60°
120°
G
As seen from above
H G
As seen from the side
H
Dolby Digital
Dolby Digital is a multichannel 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.
Surround
Dolby Surround
The AVR-989 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.
Dolby Pro Logic g
Dolby Pro Logic g 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.
Dolby Pro Logic gx
Dolby Pro Logic gx is a further improved version of the Dolby Pro
Logic g 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 optimized for playing
games.
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are trademarks
of Dolby Laboratories.
DTS Surround
DTS Digital Surround
DTS Digital Surround is the standard digital surround format of DTS,
Inc., compatible with a sampling frequency of 44.1 or 48 kHz and up
to 5.1-channels of digital discrete surround sound.
DTS-ES™ Discrete 6.1
DTS-ES™ Discrete 6.1 is a 6.1-channel discrete digital audio format
adding a surround back (SB) channel to the DTS digital surround sound.
Decoding of conventional 5.1-channel audio signals is also possible
according to the decoder.
DTS-ES™ Matrix 6.1
DTS-ES™ Matrix 6.1 is a 6.1-channel discrete digital audio format
inserting a surround back (SB) channel to the DTS digital surround
sound through matrix encoding. Decoding of conventional 5.1-channel
audio signals is also possible according to the decoder.
Dolby TrueHD
Dolby TrueHD is a high definition audio technology developed by Dolby
Laboratories, using lossless coding technology to faithfully reproduce
the sound of the studio master.
This format is compatible with a maximum sampling frequency of 96
kHz and up to 7.1-channels, so it is used for applications particularly
prioritizing sound quality.
Dolby Digital Plus
Dolby Digital Plus is an improved Dolby Digital signal format that is
compatible with up to 7.1-channels of discrete digital sound and also
improves sound quality thanks to extra data bit rate performance. It
is upwardly compatible with conventional Dolby Digital, so it offers
greater flexibility in response to the source signal and the conditions
of the playback equipment.
DTS-HD High Resolution Audio
DTS-HD High Resolution Audio is an improved version of the
conventional DTS, DTS-ES and DTS 96/24 signals formats, compatible
with sampling frequencies of 96 or 48 kHz and up to 7.1-channels
of discrete digital sound. High data bit rate performance provides
high quality sound. This format is fully compatible with conventional
products, including conventional DTS digital surround 5.1-channel
data.
DTS-HD Master Audio
DTS-HD Master Audio is DTS, Inc’s lossless audio format compatible
with up to 96 kHz/7.1-channels. The lossless audio coding technology
faithfully reproduces the sound of the studio master. It is fully
compatible with conventional products, including conventional DTS
digital surround 5.1-channel data.
DTS NEO:6™ Surround
DTS NEO:6™ is a matrix decoding technology for achieving 6.1-
channel surround playback with 2-channel sources. It includes “DTS
NEO:6 Cinema” suited for playing movies and “DTS NEO:6 Music”
suited for playing music.
2 to 3 feet /
60 to 90 cm
Information
Dolby Digital EX
Dolby Digital EX is a 6.1-channel surround format proposed by Dolby
Laboratories that allows users to enjoy in their homes the “DOLBY
DIGITAL SURROUND EX” audio format jointly developed by Dolby
Laboratories and Lucas Films.
The 6.1 channels of sound, including surround back channels, provide
improved sound positioning and expression of space.