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How will you reduce reverberation in public halls or buildings ?

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Reverberation is the persistence of sound after it has stopped due to the reflection from the surfaces.
To reduce reverberation in public halls or buildings the walls of the buildings are covered with a material which can absorb sound and does not reflect it back.
The materials can be fireboard or rough plasters.
The seat materials are also made up of sound absorbing materials.
Final Answer:
To reduce reverberation, the walls of public halls or buildings are made up of sound absorbable materials.

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