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Table A13 –
continued
Surround Mode
Description
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 7550HD's post-processor, they may also be used
with some DTS bitstreams to add a surround back channel to 5.1 modes.
Dolby Pro Logic IIx
This mode is similar to Dolby Pro Logic II Movie, with an added surround
Movie
back channel.
Dolby Pro Logic IIx
This mode is similar to Dolby Pro Logic II Music, including the availability
Music
of center width, dimension and panorama adjustments. Dolby Pro Logic IIx
Music adds a surround back channel.
Dolby Pro Logic IIx
This mode is similar to Dolby Pro Logic II Game, with the added benefit
Game
of a surround back channel.
Dolby Virtual Speaker
Simulates 5.1 channels when only two speakers are present, or a more
Mode Group
enveloping sound field is desired.
Dolby Virtual Speaker
When only two main speakers are present, the Reference mode virtualizes • Dolby Digital (uses only two-speaker mode
Reference
a full surround presentation with accurate localization.
Dolby Virtual Speaker
Wide mode may be used with two main speakers to widen the front
Wide
soundstage by virtualizing the locations of the left and right speakers.
DTS Digital
Using a different encoding/decoding method than Dolby Digital, it also
provides up to five discrete main channels, plus an LFE channel.
DTS-HD
DTS-HD is a new high-definition audio format that complements the
high-definition video found on Blu-ray Disc and HD-DVD discs. It is
transmitted using a DTS core with high-resolution extensions. Even when
only DTS 5.1 surround sound is desired (or available, if the multizone
system is in use), the higher capacity of high-resolution discs serves up
DTS at twice the bit rate used on DVD-Video discs.
DTS-HD Master Audio DTS-HD Master Audio technology delivers bit-for-bit reproductions of the
studio master recording in up to 7.1 channels, for an incredibly accurate
performance.
APPENDIX
Incoming Bitstream or Signal
• Dolby Digital 2/0/.0 or .1, 2/2/.0 or .1,
3/2/.0 or .1, EX
• Analog (2-channel)
• Tuner
• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
• Dolby Digital 2/0/.0 or .1, 2/2/.0 or .1,
3/2/.0 or .1, EX
• Analog (2-channel)
• Tuner
• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
• Dolby Digital 2/0/.0 or .1
• Analog (2-channel)
• Tuner
• PCM (32kHz, 44.1kHz or 48kHz)
See below
when signal does not contain center channel
information)
• Analog (2-channel)
• Tuner
• PCM (32kHz, 44.1kHz or 48kHz)
• Dolby Digital (number of channels available
varies by number of channels in signal)
• Analog (2-channel)
• Tuner
• PCM (32kHz, 44.1kHz or 48kHz)
• DTS 1/0/.0 or .1, 2/0/.0 or .1, 3/0/.0 or .1,
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)
• Blu-ray Disc or HD-DVD discs encoded
with DTS-HD modes, delivered via HDMI
• Blu-ray Disc or HD-DVD discs encoded with
DTS-HD Master Audio technology, delivered
via HDMI
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