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What is reverberation? How can it be reduced?
It is defined as due to . When a sound is created in a big hall, it persists by repeated reflection from the walls until it is to a value where it is .
To reduce reverberation, the roof and walls of the auditorium are generally covered with .
Answer variants:
reduced
multiple reflections
sound absorbing materials
persistence of sound
sound reflection materials
increased
no longer audible
audible
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