Yamaha DSP-A3090 English, ●LIVENESS, ● REV. TIME (Reverberation Time)

●LIVENESS

How it Affects the Sound:

This parameter changes the apparent reflectivity of the walls in the hall.

The early reflections from a sound source will lose intensity (decay) much faster in a room with acoustically absorbent wall surfaces than in one which has mostly reflective surfaces. A room with highly reflective surfaces in which the early reflections decay slowly is termed “live”, while a room with absorbent characteristics in which the reflections decay rapidly is termed “dead”. The LIVENESS parameter lets you adjust the early reflection decay rate, and thus the “liveness” of the room.

What it Does:

Changes the rate at which the early reflections decay.

Control Range:

0 – 10.

Level			Level	Direct sound	Level
		Small		Large
	Dead	Time		Time	Live	Time

● REV. TIME (Reverberation Time)	English
How it Affects the Sound:

The natural reverberation time of a room depends primarily on its size and the characteristics of its inner surfaces. This parameter, therefore, changes the apparent size of the acoustic environment over an extremely wide range.

What it Does:

Adjusts the amount of time it takes for the level of the dense, subsequent reverberation sound to decay by 60 dB (@ 1 kHz).

Control Range:

1.0 – 5.0 seconds.

The reverb time in a small-to-medium size hall would be between 1 and 2, and in a large hall it is normally between 2 and 3.

Level

Level

Direct sound

Level

Early reflections

60 dB

Small

60 dB

Large

60 dB

Time

Time

Time

REV. TIME

REV. TIME

REV. TIME

Reverberations

Reverberations

Reverberations

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