Yamaha RX-V665 - Инструкция по эксплуатации - Страница 43

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 En

Editing surround decoders/sound field programs

English

INTR

ODUCTION

AD

DITIONAL 

INFORMA

T

ION

APPENDIX

PRE

P

ARA

T

ION

BA

S

IC

OPERA

T

ION

AD

V

ANCED

OPERA

T

ION

■

Parameters for defining attenuation 
characteristics of early-reflected sound

Adjusts the attenuation of reflected sound. You can create 
a lively sound field (with a high reverberant sound level) 
as you increase the value, and a dead sound field (with a 
low reverberant sound level) as you decrease the value. 
Creating either a lively sound field or a dead sound field in 
an actual music hall is determined by the acoustic 
absorption characteristics of reflection surfaces. A dead 
sound field is created when the attenuation time is short 
while a lively sound field is created when the attenuation 
time is long.

■

Parameters for adjusting reverberant sound

Rev.Time parameter adjusts the attenuation time of the 
rear reverberant sound based on the time that about 1kHz 
reverberant sound takes for 60dB of attenuation. 
Reverberant sound attenuates faster as you decrease the 
value. Rev.Time adjustment allows you to create a natural 
reverberant sound, by setting the attenuation time longer 
for a sound source or room with less echo, or shorter for a 
sound source or room with more echo.

Rev.Delay parameter adjusts the time difference between 
the beginning of the direct sound and the beginning of the 
reverberation sound. The larger the value, the later the 
reverberation sound begins. Increasing the value of 
Rev.Delay allows you to create a reverberant sound in a 
wider area for the same Rev.Time.

Parameter

Adjustable range

Liveness
S.Liveness
SB Liveness

0

 to 

10

0

 to 

10

0

 to 

10

Parameter

Adjustable range

Rev.Time
Rev.Delay
Rev.Level

1.0

 to 

5.0s

0

 to 

250ms

0

 to 

100%

Time

Le

vel

Le

vel

Time

Early reflections

Source sound

Sound source

Small = 0.1

Large = 2.0

Time

Le

v

e

l

Small = 0

Large = 10

Time

Le

v

e

l

Source sound

Live

Dead

Large reflected 
sound

Small reflected 
sound

Time

Time

Small = 1.0s

Large = 5.0s

Source sound

Rear reverberation

Rear 
reverberation

Early reflections

Short 
reverberation

Long 
reverberation

Sound source

Rev.Time

Rev.Time

60dB

60dB

Time

L

e

vel

Source sound

Reverberation

(dB)

Rev.Delay

Rev.Time

60dB