Bedienungsanleitung Yamaha RX-V2400 (Seite 87 von 91) (Englisch)

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GLOSSARY

English

ADDITIONAL

INFORMATION

■ Dolby Surround

Dolby Surround uses a 4 channel analog recording system

to reproduce realistic and dynamic sound effects: 2 front

left and right channels (stereo), a center channel for dialog

(monaural), and a surround channel for special sound

effects (monaural). The surround channel reproduces

sound within a narrow frequency range.

Dolby Surround is widely used with nearly all video tapes

and laser discs, and in many TV and cable broadcasts as

well. The Dolby Pro Logic decoder built into this unit

employs a digital signal processing system that

automatically stabilizes the volume on each channel to

enhance moving sound effects and directionality.

■ Dolby Digital

Dolby Digital is a digital surround sound system that gives

you completely independent multi-channel audio. With 3

front channels (left, center, and right), and 2 surround

stereo channels, Dolby Digital provides 5 full-range audio

channels. With an additional channel especially for bass

effects, called LFE (low frequency effect), the system has

a total of 5.1 channels (LFE is counted as 0.1 channel). By

using 2-channel stereo for the surround speakers, more

accurate moving sound effects and surround sound

environment are possible than with Dolby Surround. The

wide dynamic range (from maximum to minimum

volume) reproduced by the 5 full-range channels and the

precise sound orientation generated using digital sound

processing provide listeners with previously unheard of

excitement and realism.

With this unit, any sound environment from monaural up

to a 5.1-channel configuration can be freely selected for

your enjoyment.

Dolby Digital EX creates 6 full-bandwidth output

channels from 5.1-channel sources. This is done using a

matrix decoder that derives 3 surround channels from the

2 in the original recording. For the best results, Dolby

Digital EX should be used with movie sound tracks

recorded with Dolby Digital Surround EX. With this

additional channel, you can experience more dynamic and

realistic moving sound especially with scenes with

"flyover" and "fly-around" effects.

■ Dolby Pro Logic II

Dolby Pro Logic II is an improved technique used to

decode vast numbers of existing Dolby Surround software.

This new technology enables a discrete 5-channel

playback with 2 front left and right channels, 1 center

channel, and 2 surround left and right channels (instead of

only 1 surround channel for conventional Pro Logic

technology). The Music and Game modes are also

available for 2-channel sources in addition to the movie

mode.

■ Dolby Pro Logic IIx

Dolby Pro Logic IIx is a new technology enabling discrete

7.1-channel playback from 2-channel or multi-channel

sources. There is a Music mode for music, a Movie mode

for movies and a Game mode for games.

■ DTS (Digital Theater Systems)

Digital Surround

DTS digital surround was developed to replace the analog

soundtracks of movies with a 6-channel digital sound

track, and is now rapidly gaining popularity in movie

theaters around the world. Digital Theater Systems Inc.

has developed a home theater system so that you can enjoy

the depth of sound and natural spatial representation of

DTS digital surround in your home. This system produces

practically distortion-free 6-channel sound (technically, a

left, right and center channels, 2 surround channels, plus

an LFE 0.1 channel as a subwoofer, for a total of 5.1

channels).

The unit incorporates DTS-ES decoder that enables 6.1-

channel reproduction by adding the surround back channel

to existing 5.1-channel format.

■ Neo:6

Neo:6 decodes the conventional 2-channel sources for 6

channel playback by the specific decoder. It enables

playback with the full-range channels with higher

separation just like digital discrete signal playback. Two

modes are available; “Music mode” for playing music

sources and “Cinema mode” for movies.

■ LFE 0.1 channel

This channel is for the reproduction of low bass signals.

The frequency range for this channel is 20 Hz to 120 Hz.

This channel is counted as 0.1 because it only enforces a

low frequency range compared to the full-range

reproduced by the other 5/6 channels in a Dolby Digital or

DTS 5.1/6.1 channel systems.

■ CINEMA DSP

Since the Dolby Surround and DTS systems were

originally designed for use in movie theaters, their effect

is best felt in a theater having many speakers and designed

for acoustic effects. Since home conditions, such as room

size, wall material, number of speakers, and so on, can

differ so widely, it’s inevitable that there are differences in

the sound heard as well. Based on a wealth of actually

measured data, YAMAHA CINEMA DSP uses

YAMAHA original sound field technology to combine

Dolby Pro Logic, Dolby Digital and DTS systems to

provide the visual and audio experience of movie theater

in the listening room of your own home.

GLOSSARY

01EN00_RX-V2400RDS_EN.book Page 85 Thursday, November 6, 2003 11:49 AM

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