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Table A12 – Surround Modes
Surround Mode Description Incoming Bitstream or Signal
Dolby Digital Provides up to five separate main audio channels and a dedicated • Dolby Digital 1/0/.0 or .1, 2/0/.0 or .1,
low-frequency effects (LFE) channel. 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 coax or optical connection
Dolby Digital EX An expansion of Dolby Digital 5.1 that adds a surround back channel • Dolby Digital EX
which may be played through one or two surround back speakers. May • Dolby Digital 2/2/.0 or .1, 3/2/.0 or .1
be manually selected when a non-EX Dolby Digital stream is detected.
Dolby Digital Plus An enhanced version of Dolby Digital encoded more efficiently, Dolby • Dolby Digital Plus via HDMI connection
Digital Plus has the capacity for additional discrete channels and for (source device decodes to Dolby Digital
streaming audio from the Internet, all with enhanced audio quality. Source when a coax or optical connection is used)
material may be delivered via an HDMI connection, or decoded to Dolby
Digital or PCM and transmitted via S/P-DIF coaxial or optical digital audio.
Dolby TrueHD Dolby TrueHD is an expansion of MLP Lossless
™
audio, the same format • Blu-ray Disc or HD-DVD encoded with
used on DVD Audio discs. Dolby TrueHD adds the features found in Dolby TrueHD, delivered via HDMI
Dolby Digital, such as night mode settings, while delivering fully lossless
audio that is a true reproduction of the studio master recording.
Dolby Digital Stereo Delivers a 2-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 Analog decoder that derives five full-range, discrete main audio channels See below
Mode Group from matrix surround-encoded or 2-channel analog sources. Four variants
are available.
Dolby Pro Logic II Variant of Dolby Pro Logic II that is optimized for movie and • Dolby Digital 2.0 or 2.1
Movie television programs. • Analog (2-channel)
• Tuner
• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
Dolby Pro Logic II Variant of Dolby Pro Logic II that is optimized for music selections. • Dolby Digital 2.0 or 2.1
Music Allows adjustment of sound field presentation in three dimensions: • Analog (2-channel)
• Center Width (adjusts width of vocal soundstage) • Tuner
• Dimension (adjusts depth of soundstage) • PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
• Panorama (adjusts wraparound surround effect)
Dolby Pro Logic II Variant of Dolby Pro Logic II that emphasizes use of the surround • Dolby Digital 2.0 or 2.1
Game channels and subwoofer for total immersion in the video gaming • Analog (2-channel)
experience. • Tuner
• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
Dolby Pro Logic Original version of Dolby Pro Logic that steered a mono signal • Dolby Digital 2.0 or 2.1
containing information below 7kHz to the surround channels. • Analog (2-channel)
• Tuner
• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
Dolby Pro Logic IIx An expansion of Dolby Pro Logic II that adds a surround back channel
Mode Group
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 bit-
streams, but thanks to the AVR 3600’s post-processor, they may also be used
with some DTS bitstreams to add a surround back channel to 5.1 modes.
APPENDIX