Surround Mode Chart; Advanced Features - Harman Kardon AVR 75 Owner's Manual

The first time a PCM source is played the
AVR75 will automatically select the
Stereo mode, but you may then select
any surround mode desired.

Surround Mode Chart

MODE FEATURES
DOLBY DIGITAL This mode is used only when the source material is encoded with Dolby Digital (AC-3)
data. It provides up to five separate main audio channels and a special dedicated Low-
Frequency Effects channel. Use this mode with DVD, LV or HDTV sources featuring
Dolby Digital playback.
DOLBY PRO LOGIC 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, DVD 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
stereophonic source material that does not carry surround encoding.
DOLBY 3 STEREO Dolby 3 Stereo uses the information contained in a surround encoded or two-channel
stereo 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 processing uses matrix surround decoding, with the option to extend
the delay time to 90 ms. Use this to experiment with surround times above 30 ms, or if
the delay time formula suggests a longer 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.
STEREO This mode turns off all surround processing and presents the pure left and right
channel presentation of two channel stereo programs.

Advanced Features

31
Recording When Digital Sources
Are In Use
Since the record outputs of the AVR75
are traditional two-channel stereo, the
multichannel outputs of a Dolby Digital
signal may not be recorded. When any
digital signal is being played, the accom-
panying analog audio signal is sent to
the and
Tape Out VCR Out
∞ e h . The video source being output
is the last selected video input shown in
the indicator P .
Visual
DELAY TIME RANGE
Center: 0 ms – 5 ms
Surround: 0 ms –15 ms
15 ms – 30 ms
Initial Setting = 20 ms
No Surround Channels
40 ms – 90 ms
Initial Setting = 40 ms
40 ms – 90 ms
Initial Setting = 40 ms
40 ms – 90 ms
Initial Setting = 40 ms
No Surround Channels
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