Yamaha RX-V663 Black: Sound field program information

SOUND FIELD PROGRAM INFORMATION

Sound field program information

■ Elements of a sound field

■ SILENT CINEMA

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

Yamaha has developed a natural, realistic sound effect

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

DSP algorithm for headphones. Parameters for

addition to making the sound live, these reflections enable

headphones have been set for each sound field so that

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

accurate representations of all the sound field programs

and shape of the room in which we are sitting.

can be enjoyed on headphones.

There are two distinct types of sound reflections that

■ Virtual CINEMA DSP

combine to make up the sound field in addition to the

Yamaha has developed a Virtual CINEMA DSP algorithm

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

that allows you to enjoy DSP sound field surround effects

instrument.

even without any surround speakers by using virtual

Early reflections

surround speakers. It is even possible to enjoy Virtual

Reflected sounds reach our ears extremely rapidly (50 ms

CINEMA DSP using a minimal two-speaker system that

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

does not include a center speaker.

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

Early reflections actually add clarity to the direct sound.

■ Compressed Music Enhancer

The Compressed Music Enhancer feature of this unit

Reverberations

enhances your listening experience by regenerating the

These are caused by reflections from more than one

missing harmonics in a compression artifact. As a result,

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

flattened complexity due to the loss of high-frequency

numerous that they merge together to form a continuous

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

sonic afterglow. They are non-directional and lessen the

frequency bass is compensated, providing improved

clarity of the direct sound.

performance of the overall sound system.

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 uses Yamaha original sound

field technology to combine Dolby Pro Logic, Dolby

Digital and DTS systems to provide the audiovisual

experience of a movie theater in the listening room of your

own home.

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