EDITING SOUND FIELD PARAMETERS

What is 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, and the size and shape of the room in which we are sitting.

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For details on how to change parameter settings, see page 39.

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.

Sound field parameter descriptions

You can adjust the values of certain digital sound field parameters so the sound fields are recreated accurately in your listening room. Not all of the following parameters are found in every program.

 

STEREO

HALL

JAZZ

ROCK

2

 

1

2

3

4

 

MUSIC ENTERTAIN TV THTR

MOVIE

 

5

6

7

8

 

 

STANDARD

NIGHT

EXTD SUR. STRAIGHT

 

 

9

0

+10

ENT

 

 

TV

 

AV

EFFECT

 

 

 

 

 

 

 

 

 

CODE SET

 

 

REC

FREQ/RDS

EON

 

 

 

 

s

AUDIO

 

 

DISC SKIP

MODE PTY SEEK START

 

 

w

 

e

f

 

 

A/B/C/D/E

 

d PRESET u

 

 

b

 

p

a

 

 

TITLE

 

 

MENU

 

 

LEVEL

 

 

SET MENU

 

 

CH

ENTER

CH

3,4

 

 

 

+

 

RETURN

 

 

DISPLAY

 

TEST/

 

 

 

 

 

RETURN

 

 

 

 

TV VOL

 

VOLUME

 

 

 

MUTE

 

 

1

 

AMP

 

 

DVD/CD

VCR

VIDEO 1

 

 

DTV/CBL

TUNER

VIDEO 2

 

 

MUTE

INPUT

+

 

 

 

 

CH

 

 

 

TV MODE

 

 

1Press AMP on the remote control.

AMP

2Press one of the sound field program group buttons to select the desired sound field program.

STEREO HALL JAZZ ROCK

1

2

3

4

MUSIC

ENTERTAIN TV THTR

MOVIE

5

6

7

8

STANDARD

9

 

INFORMATION

ADDITIONAL

 

 

 

 

 

 

 

English

 

 

 

 

49

Page 51
Image 51
Yamaha RX-SL80 owner manual Editing Sound Field Parameters, What is a sound field, Elements of a sound field