36
AVR
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.
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2/1/.0 or .1, 2/2/.0 or .1, 3/2/.0 or .1
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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.
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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.
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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.
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HDMI
Dolby Digital Stereo Delivers a two-channel downmix of Dolby Digital materials. Ř'ROE\'LJLWDORURURU
2/1/.0 or .1, 2/2/.0 or .1, 3/2/.0 or .1
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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. Ř'ROE\'LJLWDORU
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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:
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Dolby Pro Logic Variant of Dolby Pro Logic II that emphasizes use of the surround channels and
subwoofer for total immersion in the video gaming experience.
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Dolby Pro Logic II Game Original version of Dolby Pro Logic that steered a mono signal containing information
below 7kHz to the surround channels.
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Table A8 – Surround Modes
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Audio Specifications
