Editing sound field parameters, What is a sound field changing parameter settings – Yamaha RX-V757 User Manual

Page 81

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EDITING SOUND FIELD PARAMETERS

79

ADDITIONAL

INFO

RMA

T

IO

N

English

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

TRANSMIT

RE-NAME

INPUT MODE

STANDBY

SYSTEM
POWER

A

B

PHONO

CD

MD/CD-R

TUNER

V-AUX

DVD

AMP

POWER

POWER

REC

AV

TV

SELECT

VCR 1

DTV/CBL

DVR/VCR2

MULTI CH IN

SLEEP

CLEAR

LEARN

REC

AUDIO

MUTE

MENU

TITLE

CH

CH

VOL

DISC SKIP

SET MENU

LEVEL

SRCH MODE

A/B/C/D/E

TV INPUT

TV VOL

ON SCREEN

STRAIGHT

MOVIE

ENTERTAIN

MUSIC

STEREO

4

3

2

1

8

10

7

0

9

6

5

ENT.

PURE DIRECT

EXTD SUR.

STANDARD

SELECT

NIGHT

SPEAKERS

A

B

EFFECT

MEMORY

CHP/INDEX

DISPLAY

RETURN

TV MUTE

ENTER

TV VOL

PRESET

PRESET

FREQ/TEXT

EON

START

MODE

PTY SEEK

2

4

5

3

1

AMP

ON SCREEN

DISPLAY

MOVIE

ENTERTAIN

MUSIC

STEREO

4

3

2

1

8

10

7

0

9

6

5

ENT.

PURE DIRECT

EXTD SUR.

STANDARD

SELECT

NIGHT

SPEAKERS

A

B

CHP/INDEX

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

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