Question

Write short notes on Reverberation time.

Answer 1

Answer:

Sound produced in an enclosure does not die out immediately after the source has ceased to produce it. A sound produced in a hall undergoes multiple reflections from the walls, floor and ceiling before it becomes inaudible. A person in the hall continues to receive successive reflections of progressively diminishing intensity. This prolongation of sound before it decays to a negligible intensity is called reverberation.

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 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.

Explanation:

Answer 2

Reverberation time 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.