Bedienungsanleitung Yamaha RX-V3800 (Seite 141 von 165) (Englisch)

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SOUND FIELD PROGRAM INFORMATION

139 En

ADDITIONAL

INFORMATION

English

■ Elements of a sound field

What really creates the rich, full tones of a live instrument

are the multiple reflections from the walls of the room. In

addition to making the sound live, these reflections enable

us to tell where the player is situated as well as the size

and shape of the room in which we are sitting.

There are two distinct types of sound reflections that

combine to make up the sound field in addition to the

direct sound coming straight to our ears from the player’s

instrument.

Early reflections

Reflected sounds reach our ears extremely rapidly (50 ms

to 100 ms after the direct sound), after reflecting from one

surface only (for example, from a wall or the ceiling).

Early reflections actually add clarity to the direct sound.

Reverberations

These are caused by reflections from more than one

surface (for example, from the walls, and the ceiling) so

numerous that they merge together to form a continuous

sonic afterglow. They are non-directional and lessen the

clarity of the direct sound.

Direct sound, early reflections and subsequent

reverberations taken together help us to determine the

subjective size and shape of the room, and it is this

information that the digital sound field processor

reproduces in order to create sound fields.

If you could create the appropriate early reflections and

subsequent reverberations in your listening room, you

would be able to create your own listening environment.

The acoustics in your room could be changed to those of a

concert hall, a dance floor, or a room with virtually any

size at all. This ability to create sound fields at will is

exactly what Yamaha has done with the digital sound field

processor.

■ 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 designed for

acoustic effects. Since home conditions, such as room

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

differ so widely, it is inevitable that there are differences in

the sound heard. Based on a wealth of actually measured

data, Yamaha CINEMA DSP provides the audiovisual

experience of a movie theater in the listening room of your

own home by using the Yamaha original sound field

technology combined with various digital audio systems.

■ CINEMA DSP 3D

The actually measured sound field data contain the

information of the height of the sound images. CINEMA

DSP 3D feature achieves the reproduction of the accurate

height of the sound images so that it creates the accurate

and intensive stereoscopic sound fields in a listening

room.

■ SILENT CINEMA

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.

■ Virtual CINEMA DSP

Yamaha has developed a Virtual CINEMA DSP algorithm

that allows you to enjoy DSP sound field surround effects

even without any surround speakers by using virtual

surround speakers. It is even possible to enjoy Virtual

CINEMA DSP using a minimal two-speaker system that

does not include a center speaker.

■ Compressed Music Enhancer

The Compressed Music Enhancer feature of this unit

enhances your listening experience by regenerating the

missing harmonics in a compression artifact. As a result,

flattened complexity due to the loss of high-frequency

fidelity as well as lack of bass due to the loss of low-

frequency bass is compensated, providing improved

performance of the overall sound system.

■ Sound output from each speaker

Sound output from each speaker depends on the type of

audio signals being input. Refer to the diagrams in the

table below to understand the speaker layout for each

sound field program. For details about the sound output

from each speaker in sound field programs, refer to

“Sound output in each sound field program” in

“APPENDIX” at the end of this manual.

Be advised that there may be no or not enough sound output from

speakers depending on the type of input source being played

back. Furthermore, there may be some channels that can only be

used partially when they are adjusted to specific aspects of

movies, such as special sound effects, etc.

Except for “2ch Stereo”, “7ch Stereo”, and “STRAIGHT”, you

can select a decoder to output sound from the surround back

speakers (see page 45).

Sound field program information

Note

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