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Glossary
Center mode
Setting of speakers to enhance Dolby
Pro Logic Surround mode. To obtain the
best possible surround sound, specify
the type of each speaker (page 20)
according to your speaker system.
For your reference, the following table
shows the relationship between the
speaker type parameters and the center
mode.
FS
CS
RS
C.Mode
SMALL SMALL SMALL —
LARGE SMALL SMALL NORMAL
SMALL SMALL LARGE —
LARGE SMALL LARGE NORMAL
LARGE LARGE SMALL WIDE
LARGE LARGE LARGE WIDE
SMALL LARGE SMALL —
SMALL LARGE LARGE —
SMALL NO
SMALL —
LARGE NO
SMALL PHANTOM
LARGE NO
LARGE PHANTOM
SMALL NO
LARGE —
LARGE SMALL NO
—
LARGE LARGE NO
3CH LOGIC
SMALL SMALL NO
—
SMALL LARGE NO
—
FS: Front speaker size
CS: Center speaker size
RS: Rear speaker size
C.Mode: Dolby Pro Logic center mode
Delay time
Time lag between the surround sound
output from front speakers and rear
speakers. By adjusting the delay time of
the rear speakers, you can obtain the
feeling of presence. Make the delay time
longer when you have placed the rear
speakers in a small room or close to
your listening position, and make it
shorter when you have placed them in a
large room or apart from your listening
position.
Dolby Digital (AC-3)
This is a new digital surround system
proposed to reproduce Dolby SR-D (the
3 dimensional sound system developed
for use in movie theaters) in the home.
This technology allows you to enjoy the
full 5.1 ch soundtrack intended by the
filmmaker, in the comfort of your own
home.
Dolby Pro Logic Surround
Decoding system of Dolby Surround
sound standardized in TV programs
and movies. Compared with the former
Dolby Surround system, Dolby Pro
Logic Surround improves sound image
by using four separate channels: off-
screen audio effects, on-screen dialog,
left-to-right panning, and music. These
channels manipulate the sound to be
heard and enhance the action as it
happens on the screen. To take
advantage of Dolby Pro Logic, you
should have at least one pair of rear
speakers and/or one center speaker.
You also need to select the appropriate
center mode to enjoy a full effect.
Effect level
Combination of the level of early
reflections and reverberation. You can
adjust the effect level in 6 levels. As you
select higher levels, the room becomes
"live," and as you select lower levels,
the room becomes "dead."
Parameter
Variable of sound that composes sound
image, such as tone or delay time. You
can customize the pre-programmed
sound fields by adjusting parameters to
suit your listening situation.
Sound field
Sound pattern produced by a sounding
source or sources in a given
environment due to direct and reflected
sounds and the acoustics of the
environment.
Getting Started
Additional Information
Surround sound
Sound that consists of three elements:
direct sound, early reflected sound
(early reflections) and reverberative
sound (reverberation). The acoustics
where you hear the sound affect the
way these three sound elements are
heard. These sound elements are
combined in such a way that you can
actually feel the size and the type of a
concert hall.
• Types of sound
Reverberation
Early reflections
Direct sound
• Transition of sound from rear
speakers
Direct sound
Level
Early
reflections
Reverberation
Early reflection time
Time
33