Mumbai university > FE > SEM 1 > Applied Physics 1

Marks: 3M

Year: Dec 2012

• Reverberation time is defined as the time interval between the initial direct note and the reflected note up to a minimum audibility level.

• More precisely, Reverberation time $(RT_{60})$ is defined as the time required, in seconds, for the average sound in a room to decrease by 60 dB after a source stops generating sound.

Sabine's Formula:-

$T = k \frac{V}{A}$

Where, k = Proportionality Constant = 0.161

V = Volume of the room

A = Effective absorbing area