Question

Define reverberation and how can it be reduced?

Answer 1

The persistence of sound due to repeated reflection of sounds is called reverberation.

Excessive reverberation is highly undesirable as the sound becomes blurred, distorted and confusing due to overlapping of sounds.

To reduce reverberation :

1) The walls and roofs of theatre halls are covered with sound absorbing material like compressed fiber board, draperies.
2) Seat materials are chosen to absorb sound in cinema halls, concert halls

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Answer 2

Hey friend,
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1. A sound produced in a big hall will persist by repeated reflection from the walls until it is lessened to a value where it is no longer audible. Ther repeated freflection that results in the persistence of sound is known as reverberation.

2. To reduce the undesirable effects because of reverberation, roof and walls of auditorium are usually covered with sound absorbent materials such as compressed fiberboard, rough plaster or draperies. the seat materials are also selected having sound absorption properties

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