AVR
50
Appendix
Surround Mode
Description
Incoming Bitstream or Signal
dolby digital
provides up to five separate main audio channels and a dedicated low-frequency
effects (lfe) channel.
dolby digital 1/0/.0 or .1, 2/0/.0 or .1, 3/0/.0 or .1,
•
2/1/.0 or .1, 2/2/.0 or .1, 3/2/.0 or .1
dolby digital ex (played as 5.1)
•
dolby digital plus decoded and delivered via coaxial or optical
•
connection
dolby digital ex
An expansion of dolby digital 5.1 that adds a surround back channel that may be
played through one or two surround back speakers. may be manually selected
when a non-ex dolby digital stream is detected.
dolby digital ex
•
dolby digital 2/2/.0 or .1, 3/2/.0 or .1
•
dolby digital plus
An enhanced version of dolby digital encoded more efficiently, dolby digital plus
has the capacity for additional discrete channels and for streaming audio from the
Internet, all with enhanced audio quality. Source material may be delivered via an
hdmI connection or decoded to dolby digital or pcm and transmitted via coaxial
or optical digital audio.
dolby digital plus via hdmI connection (source device decodes to
•
dolby digital when a coaxial or optical connection is used)
dolby truehd
dolby truehd is an expansion of mlp lossless
™
audio, the same format used
on dvd-Audio discs. dolby truehd adds the features found in dolby digital,
such as night mode settings, while delivering fully lossless audio that is a true
reproduction of studio master recordings.
blu-ray disc or hd-dvd encoded with dolby truehd, delivered
•
via hdmI
dolby digital Stereo
delivers a two-channel downmix of dolby digital materials.
dolby digital 1/0/.0 or .1, 2/0/.0 or .1, 3/0/.0 or .1,
•
2/1/.0 or .1, 2/2/.0 or .1, 3/2/.0 or .1
dolby digital ex
•
dolby pro logic II
mode group
Analog decoder that derives five full-range, discrete main audio channels from
matrix surround-encoded or two-channel analog sources. four variants are
available.
See below
dolby pro logic II
movie
variant of dolby pro logic II that is optimized for movie and television programs.
dolby digital 2.0 or 2.1
•
Analog (two-channel)
•
tuner
•
pcm (32khz, 44.1khz, 48khz, 96khz)
•
dolby pro logic II
music
variant of dolby pro logic II that is optimized for music selections. Allows
adjustment of sound-field presentation in three dimensions:
center width (adjusts width of vocal soundstage)
•
dimension (adjusts depth of soundstage)
•
panorama (adjusts wraparound surround effect)
•
dolby digital 2.0 or 2.1
•
Analog (two-channel)
•
tuner
•
pcm (32khz, 44.1khz, 48khz, 96khz)
•
dolby pro logic II
game
variant of dolby pro logic II that emphasizes use of the surround channels and
subwoofer for total immersion in the video gaming experience.
dolby digital 2.0 or 2.1
•
Analog (two-channel)
•
tuner
•
pcm (32khz, 44.1khz, 48khz, 96khz)
•
dolby pro logic II
original version of dolby pro logic that steered a mono signal containing
information below 7khz to the surround channels.
dolby digital 2.0 or 2.1
•
Analog (two-channel)
•
tuner
•
pcm (32khz, 44.1khz, 48khz, 96khz)
•
dolby pro logic IIx
mode group
An expansion of dolby pro logic II that adds a surround back channel which may
be played through one or two surround back speakers. the dolby pro logic IIx
modes may be selected not only with dolby digital bitstreams, but thanks to the
Avr’s post-processor, they may also be used with some dtS bitstreams to add a
surround back channel to 5.1 modes.
See below
Table A12 – Surround Modes
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