Yamaha RX-V757 User Manual

Page of 107
89
SOUND FIELD PARAMETER DESCRIPTIONS
ADDITIONAL 
INFO
RMA
T
IO
N
LIVENESS (Liveness)
Function:
Adjusts the reflectivity of the virtual walls in the hall by changing the rate at which the early reflections 
decay.
Description:
The early reflections of a sound source decay much faster in a room with acoustically absorbent wall 
surfaces than in one which has highly reflective surfaces. A room with acoustically absorbent surfaces 
is referred to as “dead”, while a room with highly reflective surfaces is referred to as “live”. The 
LIVENESS parameter lets you adjust the early reflection decay rate, and thus the “liveness” of the 
room.
Control range:
0 to 10
S. INIT. DLY (Surround initial delay)
Function:
Adjusts the delay between the direct sound and the first reflection on the surround side of the sound 
field. You can only adjust this parameter when at least two front channels and two surround channels 
are used.
Control Range: 1 to 49 msec
S. ROOM SIZE (Surround room size)
Function:
Adjusts the apparent size of the surround sound field.
Control Range: 0.1 to 2.0
S. LIVENESS (Surround liveness)
Function:
Adjusts the apparent reflectivity of the virtual walls in the surround sound field.
Control Range: 0 to 10
SB INI. DLY (Surround back initial delay)
Function:
Adjusts the delay between the direct sound and the first reflection in the surround back sound field.
Control Range: 1 to 49 msec
SB ROOM SIZE (Surround back room size)
Function:
Adjusts the apparent size of the surround back sound field.
Control Range: 0.1 to 2.0
SB LIVENESS (Surround back liveness)
Function:
Adjusts the apparent reflectivity of the virtual wall in the surround back sound field.
Control Range: 0 to 10
Source Sound
Le
v
el
L
eve
l
Le
v
el
Dead
Live
Time
Time
Time
Small Reflected 
Sound
Large 
Reflected Sound
Small value = 0
Large value = 10