Surround Mode Chart - Harman Kardon AVR80 Owner's Manual

AVR80 manual 11/01/98 13:01

Surround Mode Chart

MODE
DOLBY PRO LOGIC
THX CINEMA
DOLBY 3 STEREO
MOVIE SURROUND
HALL SURROUND
MATRIX SURROUND This mode is designed for use with sports broadcasts, live concerts or other programs
MONO
STEREO
Side 31
Advanced Features
FEATURES
Dolby Pro Logic is the standard mode for surround sound decoding. It uses information
encoded in a two channel stereo recording to produce four distinct channels:
Left, Center, Right and Surround. Use this mode for accurate reproduction of programs
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 some source material that
does not carry surround encoding.
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 the same
usual surround encoding as for DOLBY PRO LOGIC. 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 were created.
Dolby 3 Stereo uses the information contained in a surround encoded or stereophonic
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 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.
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.
where the feeling of a wide surround effect is desired.
This mode is intended for use with old music or movies, televisions shows and other
programs that have only 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.
This mode turns off all surround processing and presents the pure left and right
channel presentation of two channel stereo programs.
31
DELAY TIME RANGE
15 ms – 30 ms
Initial Setting = 20 ms
15 ms – 30 ms
Initial Setting = 20 ms
No Surround Channels
10 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