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ADVANCED FUNCTIONS
Table 5 – 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. May be encoded for Night mode, 3/0/.0 or .1, 2/1/.0 or .1, 2/2/.0 or .1,
which allows the user to apply a compression setting that maintains 3/2/.0 or .1
intelligibility of softer passages while reducing the loudness of dynamic • Dolby Digital EX (played as 5.1)
passages to avoid disturbing others.
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.
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 (32 kHz, 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 (
32 kHz, 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 (32 kHz, 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 (32 kHz, 44.1kHz, 48kHz, 96kHz)
Dolby Virtual Speaker Simulates 5.1 channels when fewer speakers are present, or a more See below.
enveloping sound field is desired.
Dolby Virtual Speaker When fewer than five main speakers are present, the Reference • Dolby Digital (uses only two-speaker mode
Reference mode virtualizes the missing speakers with accurate localization. when s
ignal does not contain center channel
Select from two- or three-speaker mode, depending on how many
information)
physical speakers are in your system. • Analog (2-channel)
• Tuner
• PCM (32 kHz, 44.1kHz or 48kHz)
Dolby Virtual Speaker Wide mode may be used with two, three, four or five main speakers to widen • Dolby Digital (number of channels available
Wide the front soundstage by virtualizing the locations of the left and right speakers. varies by number of channels in signal)
• Analog (2-channel)
• Tuner
• PCM (32 kHz, 44.1kHz or 48kHz)
DTS Digital Surround Using a different encoding/decoding method than Dolby Digital, • DTS 1/0/.0 or .1, 2/0/.0 or .1, 3/0/.0 or .1,
it also provides up to five discrete main channels, plus an LFE channel. 3/1/.0 or .1, 2/2/.0 or .1, 3/2/.0 or .1
• DTS-ES Matrix (played as 5.1)
• DTS-ES Discrete (played as 5.1)
AVR146-OM.qxd 2/5/07 3:59 PM Page 43
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