What is reverberation? How can it be reduced?
The repeated reflection that results in this persistence of sound is called reverberation. A sound created in a big hall will persist by repeated reflection from the walls until it is reduced to a value where it is no longer audible.
Reverberation can be reduced by following methods:
(i) By covering the walls and roof of the halls with sound absorbing materials.
(ii) By providing heavy curtains with folds, so that reflection of the sound is avoided.