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Yamaha DSP-A595a Owner's Manual: Introduction; Features Of The Sound Effects

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Welcome to the exciting world of digital home entertainment.
This unit is one of the most complete and advanced AV
amplifiers available. Some of the more advanced features may
not be familiar to you, but they are easy to use. State-of-the-art
technologies such as Dolby Digital and Digital Theater Systems
(DTS) may be new to your home, but you have probably
experienced the amazing realism they bring to feature films in
theaters around the world.
Digital Sound Field Processing
What is it that makes live music so good? Today's advanced
sound reproduction technology lets you get extremely close to
the sound of a live performance, but the chances are that you'll
still notice something missing — the acoustic environment of
the live concert hall. Extensive research into the exact nature
of the sonic reflections that create the ambience of a large hall
has made it possible for YAMAHA engineers to bring you this
same sound to your listening room, so you'll feel all the sound
of a live concert.
Dolby Pro Logic
Dolby Surround has been used in movie theaters since the mid-
seventies. It has also been available in home entertainment
systems since the late eighties and continues to be a popular
format for home theater systems. It uses four discrete channels
and five speakers to reproduce realistic and dynamic sound
effects: two main channels (left and right), a center channel for
dialog, and a rear channel for special sound effects. The rear
channel reproduces sound within a narrow frequency range.
To make the listening experience even more enjoyable, this unit
includes a number of exclusive, digitally created listening
environments known as digital sound fields. Choosing a sound
field program is like transporting yourself to such venues as an
outdoor arena, a European church, or a cozy jazz club. Take
some time now to read more about these features and enjoy
the new experiences this unit brings to your home theater.
Furthermore, our technicians, armed with sophisticated
measuring equipment, have even made it possible to capture
the acoustics of a variety of actual concert halls, theaters, etc.
from around the world, to allow you to accurately re-create any
one of these live performance environments, all in your own
Most video tapes and laser discs include Dolby Surround
encoding, as do many TV and cable broadcasts. The Dolby Pro
Logic decoder built into this unit employs a digital signal
processing system that stabilizes each channel for even more
accurate sound positioning than is available with standard
analog processors.


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