Surround Mode Chart - Harman Kardon AVR80II Owner's Manual

Surround Mode Chart

MODE FEATURES
DOLBY PRO LOGIC
Dolby Pro Logic is the standard mode for surround sound decoding. It uses informa-
tion encoded in a two channel stereo recording to produce four distinct channels:
Left, Center, Right and Surround. Use this mode for accurate reproduction of pro-
grams bearing the Dolby Surround, DTS Stereo, UltraStereo or other "Surround"
logos. Surround encoded programs include videocassette and LD movies, TV and
cable programs, radio programs and audio CDs. Dolby Pro Logic processing
may also be used to provide a pleasing surround effect with source material that
does not carry surround encoding.
THX CINEMA
THX Cinema is a patented process developed by Lucasfilm Ltd. as an enhancement
to surround processing. It includes additional enhancements that greatly improve
the spectral and spatial realism of motion pictures that are recorded with surround
encoding. THX Cinema's exclusive processing is designed to overcome the differences
in acoustics between movie theaters and home listening rooms so that movie sound
tracks will sound the same way at home as they did in the mixing room where they
are created. Use this mode when viewing motion pictures on video.
DOLBY 3 STEREO
Dolby 3 Stereo uses the information contained in a surround encoded program to
create center channel information. In addition, the information that is normally sent
to the rear channel surround speakers is carefully mixed in with the front left and
right channels for increased realism. Use this mode when you have a center channel
speaker, but no surround speakers.
MOVIE SURROUND
Movie Surround uses decoding similar to Pro Logic, but it permits delay
times up to 90 ms. Use this mode instead of Pro Logic or THX to experiment with
surround times above 30 ms, or if the delay time formula suggests a
larger time delay for your room.
HALL SURROUND
This mode is designed for use with stereo recordings. It provides a sound field effect
that simulates the complex combination of direct and reflected sounds that create
the rich reverberant atmosphere of a medium sized circular concert hall.
MATRIX SURROUND This mode is designed for use with sports broadcasts, live concerts or other programs
where the feeling of a wide surround effect is desired.
MONO This mode is intended for use with old movies, televisions shows and other programs
that have a monaural sound track. All sound will be reproduced through the center
channel speaker, if installed. If there is no center channel speaker, monaural sound is
reproduced from the front left and right speakers.
STEREO This mode turns off all surround processing and presents the pure left and right
channel presentation of two channel stereo programs.
Advanced Features
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DELAY TIME RANGE
15 ms – 30 ms
Initial Setting = 20 ms
15 ms – 30 ms
Initial Setting = 20 ms
No Surround Channels
40 ms – 90 ms
Initial Setting = 20 ms
10 ms – 90 ms
Initial Setting = 20 ms
10 ms – 90 ms
Initial Setting = 20 ms
No Surround Channels
No Surround Channels