Yamaha RX-V3800 - Manual (Page 81)

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Graphical user interface (GUI) screen
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Liveness
Sur. Liveness
SB. Liveness Liveness. Surround and surround back liveness. Adjusts the reflectivity of the virtual walls in the hall
by changing the rate at which the early reflections decay. 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”. This parameter lets you adjust the early reflection
decay rate and thus the “liveness” of the room.
Control range: 0 to 10
Rev. Time Reverberation time. Adjusts the amount of time taken for the dense, subsequent reverberation sound to
decay by 60 dB at 1 kHz. This changes the apparent size of the acoustic environment over an extremely
wide range. Set a longer reverberation time to get more sustaining reverberation sound, and set a
shorter time to get articulate sound.
Control range: 1.0 to 5.0 s
Sound field parameter Features
Source sound
Le
v
el
Le
v
el
Le
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Dead
Live
Time Time Time
Small reflected
sound Large reflected
sound
Small value = 0 Large value = 10
Reverberation Reverberation Source sound
Rev. Time Rev. Time Rev. Time
Sound source
Short
reverberation Long
reverberation
Small value = 1.0 s Large value = 5.0 s
Early reflections
60 dB 60 dB 60 dB