Harman Kardon AVR 254 Owner's Manual page 61

Surround Mode Description
Dolby Pro Logic II Variant of Dolby Pro Logic II that emphasizes use of the surround
Game channels and subwoofer for total immersion in the video gaming
experience.
Dolby Pro Logic Original version of Dolby Pro Logic that steered a mono signal
containing information below 7kHz to the surround channels.
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 254'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
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.
APPENDIX
Incoming Bitstream or Signal
• Dolby Digital 2.0 or 2.1
• Analog (2-channel)
• Tuner
• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
• Dolby Digital 2.0 or 2.1
• 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, 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.
• Dolby Digital (uses only two-speaker mode
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)
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