Bedienungsanleitung Yamaha DSP-AX3200 (Seite 75 von 78) (Englisch)

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INTRODUCTION PREPARATION

BASIC

OPERAIONT

ADVANCED

OPERATION

ADDITIONAL

INFORMATION

APPENDIX

GLOSSARY

■ Dolby Surround

Dolby Surround uses a four analog channel recording

system to reproduce realistic and dynamic sound effects:

two left and right main channels (stereo), a center channel

for dialog (monaural), and a rear channel for special

sound effects (monaural). The rear 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 three front channels (left, center and right), and two

rear stereo channels, Dolby Digital provides five 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).

Using two-channel stereo for the rear 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 five 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 Pro Logic

Dolby Pro Logic is the improved technique to decode

vast numbers of existing Dolby Surround programs. This

new technology enables a discrete 5-channel playback

with two left and right main channels, a center channel,

and two left and right rear channels compared with one

limited rear channel for the conventional Pro Logic

technology. Also the music mode is available for 2-

channel sources in addition to the movie mode.

■ DTS (Digital Theater Systems)

Digital Surround

DTS digital surround was developed to replace the analog

soundtracks of movies with a six-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 is practically distortion-free, clear 6-channel

sound (technically, a left, right and center channels, two

rear channels, plus an LFE 0.1 channel as a subwoofer,

for a total of 5.1 channels).

■ DTS 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 channels in a Dolby Digital or

DTS 5.1 channel systems.

■ CINEMA DSP

DIGITAL

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.

■ SILENT CINEMA DSP

YAMAHA has developed a natural, realistic sound effect

DSP algorithm for headphones.

Parameters for headphones have been set for each sound

field so that accurate representations of all the sound field

programs can be enjoyed on headphones.

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