Yamaha RX-V657 Owner's Manual download pdf (Page 85)

EDITING SOUND FIELD PARAMETERS

ADDITIONAL

INFORMATION

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, and the size

and shape of the room in which we are sitting.

■ Elements of a sound field

In any environment, in addition to the direct sound coming

straight to our ears from the player’s instrument, there are

two distinct types of sound reflections that combine to

make up the sound field:

Early reflections

Reflected sounds reach our ears extremely rapidly (50 ms

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

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

Early reflections actually add clarity to the direct sound.

Reverberations

These are caused by reflections from more than one

surface – walls, ceiling, the back of the room – 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

reverberation 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 virtually any size room at

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

what YAMAHA has done with the digital sound field

processor.

You can enjoy good quality sound with the factory preset

parameters. Although you do not have to change the initial

settings, you can change some of the parameters to better

suit the input source or your listening room.

1 Press AMP.

2 Turn on the video monitor and

press ON SCREEN repeatedly

to select the full display

mode.

3 Select the sound field program you want to

adjust.

EDITING SOUND FIELD PARAMETERS

What is a sound field Changing parameter settings

REC

AUDI O

MUTE

MENUTITLE

DISC SKIP

SET MENU

BAND SRCH MODE

MEMORY ON SCREEN

LEVEL

A-E/CAT. A-E/CAT.

STRAIGHT

MOVIE

ENTERTAIN

MUSICSTEREO

4321

ENT.

PURE DIRECT

EXTD SUR.

STANDARD

SELECT

NIGHT

SPEAKERS

EFFECT

DISPLAYRETURN

ENTER

PRESET/CH

TRANSMITCODE SET

STANDBY

SYSTEM

POWER

CD MD/CD-R

TUNER

V-AU XDVD

AMP

POWERPOWER

VOLUME

TV MUTE TV INPUT

TV VOL TV CH

AVTV

VCR 1 DVR/VCR2

DTV/CBL

MULTI CH IN

SLEEP

AMP

ON SCREEN

DISPLAY

P04

MOVIE THEATER

.General

DSPLEVEL;;;;0dB

P.INIT.DLY;;15ms

P.ROOMSIZE;;1.0

S.INIT.DLY;;20ms

S.ROOMSIZE;;1.0

Program No. Program name

Parameters Parameter values

Cursor