Yamaha HTR-5250 - Manual (Page 59)

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English
B
ASIC OPERA
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AD
V
ANCED OPERA
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APPENDIX
INTR
ODUCTION
PREP
ARA
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GLOSSARY
CINEMA DSP ■ Dolby Surround
Dolby Surround 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 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
Dolby Digital is a digital surround sound system that
provides completely independent multi-channel audio to
you. Dolby Digital provides five full-range channels in what
is sometimes referred to as a “3/2” configuration: three front
channels (left, center and right), and 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 is called the “LFE
channel”.) This channel is counted as 0.1, thus giving rise to
the term 5.1 channels in total.
The wide dynamic range of sound reproduced by the five
full-range channels and precise sound orientation by digital
sound processing provides listeners with excitement and
realism that have never been experienced before.
■ DTS (Digital Theater System)
Digital Surround
DTS was developed to replace the analog soundtracks of
movies with six discrete channels of digital soundtracks,
and it is now installed in many theaters around the world.
The DTS digital playback system changed the way we
experienced movies in theaters with six discrete channels of
superb digital audio.
DTS technology, through intense research and development
has made it possible to deliver similar encode/decode
discrete technology to home audio surround-sound
entertainment.
DTS Digital Surround is an encode/decode system which
delivers six channels of master-quality, 20-bit audio;
technically, it is 5.1 channels, which means 5 full-range
(left, center, right and two surround) channels, plus a
subwoofer (LFE) channel (as “0.1”). It is compatible with
the 5.1 speaker configurations that are currently available
for home theater systems.
■ CINEMA DSP
The Dolby Surround and Dolby Digital sound and DTS
systems show their full ability in a large movie theater,
because movie sounds are originally designed to be
reproduced in a large movie theater that uses a multitude of
speakers. Trying to create a sound environment similar to
that of a movie theater in your home is difficult because of
the room size, material inside the walls, the number of
speakers, and so on. In other words, your listening room is
very different from a movie theater.
However, YAMAHA DSP technology allows you to create
nearly the same sound experience as that of a large movie
theater in your home by compensating for the lack of
presence and dynamics in the listening room with original
digital sound fields combined with Dolby Surround, Dolby
Digital or DTS Digital Surround sounds.
The YAMAHA “CINEMA DSP” logo indicates those
programs that are created by the combination of YAMAHA
DSP technology and Dolby Surround, Dolby Digital or
DTS.
■ LFE 0.1 Channel
This channel is for reproduction of low bass signals. The
frequency range for this channel is 20 Hz to 120 Hz. This
channel is called the channel 0.1 because it only reproduces
a low frequency range compared to the full-range from
20 Hz to 20 kHz that is reproduced by the 5 channels in a
Dolby Digital or DTS 5.1 channel system.
■ S VIDEO Signal
The S VIDEO signal is separated and transmitted as the Y
signal which indicates the luminance and the C signal which
indicates the chroma of the video signal (composite signal).
Using the S VIDEO terminal eliminates video signal
transmission loss and allows recording and playback of
even more beautiful images.
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