Yamaha DSP-A970 Panduan Pengoperasian - Halaman 7

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Dolby Pro Logic Surround

The Dolby Pro Logic Surround Decoder program lets you

experience the dramatic realism and impact of Dolby Surround movie

theater sound in your own home. Dolby Pro Logic gets its name from

its professional-grade steering logic circuitry, which provides greater

effective channel separation for a much higher degree of realism than

the "passive" Dolby Surround circuits found in today's typical home

audio/video equipment. Dolby Pro Logic Surround provides a true

center channel, so that there are four independent channels, unlike

passive Dolby Surround, which has in effect only three channels: left,

right, and rear. This center channel allows listeners seated in even

less-than-ideal positions to hear the dialog originating from the action

on the screen while experiencing good stereo imaging.

This Dolby Pro Logic Surround Decoder employs a digital signal

processing system. This system improves the stability of sound at

each channel and crosstalk between channels, so that positioning of

sounds around the room is more accurate compared with

conventional analog signal processing systems.

In addition, this unit features a built-in automatic input balance

control. This always assures you the best performance without

manual adjustment.

Manufactured under license from Dolby Laboratories Licensing

Corporation. Additionally licensed under one or more of the following

patents: U.S. number 3,950,590; Canadian numbers 1,004,603 and

1,037,877. "Dolby", "Pro Logic", and the double-D symbol are

trademarks of Dolby Laboratories Licensing Corporation.

Dolby Pro Logic Surround

You can also enjoy Dolby Pro Logic with two modes of Digital

Sound Field Processing. These combinations expand the surround

effect of Dolby Pro Logic. One is the sound field program "Enhanced

DOLBY PRO LOGIC SURROUND", which recreates the surround

effect of the 35 mm film movie theater. The other is the combination

of Dolby Pro Logic and the sound field program "MOVIE THEATER",

which recreates the listening experience of a 70 mm film theater.

The YAMAHA "CINEMA DSP" logo indicates these programs

created by the combination of Dolby Pro Logic and YAMAHA DSP

technology.

Directional Enhancement Circuit

The YAMAHA directional enhancement (DIR. ENHANCEMENT)

circuit expands and focuses the digital sound field.

This effect puts you in the midst of the action, while centering and

focusing your attention to the screen. This circuit is available on

Sound Field programs "TV THEATER 1", "TV THEATER 2",

"CONCERT VIDEO" and "VIDEO THEATER".

DSP