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Additional Information
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.
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
• Transition of sound from rear speakers
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.”
5.1 INPUT jacks
These jacks are used to input decoded Dolby Digital AC-3
audio signals, allowing you to enjoy 5.1 channel surround
sound (STR-DE715/DE615/D660Z/D560Z only). Use these
jacks to connect a Dolby Digital AC-3 decoder or a DVD
player with a built-in AC-3 decoder.
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.
Reverberation
Direct sound
Early
reflections
Reverberation
Level
Early reflection time
Time
Early reflections
Direct sound