Yamaha RX-V730 owner manual •Recreating a sound field

A sound field is defined as the "characteristic sound reflections of a

particular space." In concert halls and other music venues, we hear

early reflections and reverberations as well as the direct sound

produced by the artist(s). The variations in the early reflections and

other reverberations among the different music venues is what gives

each venue its special and recognizable sound quality.

YAMAHA sent teams of sound engineers all around the world to

measure the sound reflections of famous concert halls and music

venues, and collect detailed sound field information such as the

direction, strength, range, and delay time of those reflections. Then

we stored this enormous amount of data in the ROM chips of this unit.

•Recreating a sound field

Recreating the sound field of a concert hall or an opera house requires localizing the virtual sound sources in your

listening room. The traditional stereo system that uses only two speakers is not capable of recreating a realistic sound

field. YAMAHA's DSP requires four effect speakers to recreate sound fields based on the measured sound field data.

The processor controls the strength and delay time of the signals output from the four effect speakers to localize the

virtual sound sources and fully encompass the listener.

The following list gives you a brief description of the sound fields produced by each of the DSP programs. Keep in

mind that most of these are precise digital recreations of actual acoustic environments.

No.

Program

Features

1

CONCERT

HALL

A large

round

concert

hall

with

a rich

surround

effect.

Pronounced

reflections

from

all directions

emphasize

the

extension

of

sounds.

The sound

field

has

a great

deal

of

presence,

and

your

virtual

seat

is near

the

center,

close

to

the

stage.

2

JAZZ

CLUB

This

is

the

sound

field

at

stage

front

in

"The

Bottom

Line",

a famous

New

York

jazz

club,

that

seats

up

to

300

people. Its

wide

left

to

right

seating

arrangement

offers

a real

and

vibrant

sound.

3

ROCK

CONCERT

The

ideal program

for

lively,

dynamic

rock

music.

The

data

for

this

program

was

recorded

at

LA's

"hottest"

rock club.

The

listener's

virtual

seat

is at the

center-left

of

the

hall.

4ENTERTAINMENT/This program recreates the acoustic environment of a lively disco in the heart of a big city. The

Disco	sound is dense and highly concentrated.	It is also characterized	by a high-energy,	"immediate"
	sound.

ENTERTAINMENT/Using this program increases the listening position range. This is a sound field suitable for

6Ch Stereobackground music at parties, etc.

3O