Yamaha HTR-5230RDS Manuel du propriétaire - Page 47

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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.

GLOSSARY

CINEMA DSP

The Dolby Surround and Dolby Digital sound 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 or

Dolby Digital.

The YAMAHA "CINEMA DSP" logo indicates those

programs that are created by the combination of YAMAHA

DSP technology and Dolby Surround or Dolby Digital.

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 5.1 channel system.

CINEMA DSP