Yamaha RX-V1065 User Guide

• This setting is available only when “Extra Speaker Assignment” is set to 

“Presence” (page 56).

■ Parameters for adjusting early-reflected 

Adjusts attenuation characteristics of early-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.

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• We recommended that you adjust the size of corresponding sound field 

when you adjust the delay time.

■ Parameters for specifying room size

Produces different senses of sound expansion according to 
room sizes specified. In a large size room such as a music 
hall, the duration from when reflected sound is heard until 
when the next reflected sound is heard is long. Thus, 
different senses of sound expansion can be created by 
changing the duration. 1.0 is the original room size. When 
this parameter is set to 2.0, each side of the room is 
defined as twice larger than the original room size.

■ Parameters for defining attenuation 

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.

Adjustable range: 1 to 99ms (Initial Delay / P. Initial Delay), 1 to 

49ms (Sur. Initial Delay / Sur. Back Initial 

Delay)

Adjustable range: 0.1 to 2.0

Adjustable range: 0 to 10