Yamaha RX-V495RDS - Manual (Page 5)

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English
FEATURES OF SOUND EFFECTS
Welcome to the exciting world of digital home entertainment.
This unit is one of the most complete and advanced AV
receivers 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. 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.
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. 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
home.
Dolby Pro Logic Surround
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. Most video tapes and laser discs include Dolby Surround
encoding, as do many TV and cable broadcasts. The Dolby Pro
Logic Surround 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.
Dolby Digital
The built-in Dolby Digital decoder leads you into a totally new
sound experience.
Dolby Digital is a new generation of multi-channel digital audio
technology, or the newest spatial sound processing format
developed for 35 mm-film movies by employing a new kind of
low bit-rate audio coding.
Dolby Digital is a digital surround sound system that provides
completely independent multi-channel audio to listeners. In
multi-channel form, Dolby Digital provides 5 full-range channels
in what is sometimes referred to as a “3/2” configuration: three
front channels (left, center and right), plus two surround
channels. A sixth bass-only effect channel is also provided for
output of LFE (low frequency effect), or low bass effects that
are independent of other channels. This channel is counted as
0.1, thus giving rise to the term 5.1 channels in total.
Compared to Dolby Pro Logic, which is referred to a “3/1”
system (left front, center, right front and just one surround
channel), Dolby Digital features two surround channels, called
stereo or split surrounds, each offering the same full-range
fidelity as the three front channels.
Sound of wide dynamic range reproduced by the 5 full-range
channels provides listeners with excitement that has never
been experienced before. Precise sound orientation by
discrete digital sound processing expands the realism that the
original movie possesses.
LD and DVD are home audio/video program source that could
benefit from Dolby Digital. In the near future, Dolby Digital will
also be applied to DBS, CATV and HDTV. The ongoing release
of Dolby Digital theatrical films now underway will provide an
immediate source of Dolby Digital encoded video software.
Introduction
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