Question

what is reverberation how can it be reduced
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Answer 1

Reverbiration is the reflexion of sound in a large hall .It is highly undesireable.

We can avoid by following ways:

cover windows , chairs and walls with sound absorbant material

Answer 2

The repeated multiple reflections of sound in any big enclosed space is known as reverberation. The reverberation can be reduced by covering the ceiling and walls of the enclosed space with sound absorbing materials, such as fiber board, loose woolens, acoustic tiles , thick curtains etc.