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• This setting is available only when "Extra Speaker Assignment" is set to
"Presence" (page 56).
configurations
• Parametersfor adjusting early-reflected
sound
Initial Delay / P. Initial Delay / Sur. Initial Delay /
Sur. Back Initial Delay
Adjustable range: 1 to 99ms (Initial Delay / P. Initial Delay), 1to
49ms (Sur. Initial Delay / Sur. Back Initial
Delay)
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.
Time
Delay
I /Sound SOUrCe
r
_'_- Reflecting
Original source sound
/
,-reflected
sound
& Time
Delay
,<- _,
Small = 1ms Large = 99ms
• We recommended that you adjust the size of corresponding sound field
when you adjust the delay time.
• Parameters for specifying room size
Room Size / P. Room Size / Sur. Room Size / Sur.
Back Room Size
Adjustable range: 0.! to 2.0
Produces different senses of sound expanskm 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.
Source sound
J
Time Time
Sound source
Small = 0.1 Large = 2.0
• Parameters for defining attenuation
characteristics of early-reflected sound
Liveness / P. Liveness / Sur. Liveness / Sur. Back
Liveness
Adjustable range: 0 to ]0
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.
Source sound
Time Time
D" _ fe
i:oV,; o,,oo,o0]
Large reflected I
I s°und I
Small = 0 Large = 10
I
51 En