2. Reverberation definition

 

 

Reverberation is the complete absorption of soundsudden increase in sound intensityproduction of sound in an open spacepersistence of sound in an enclosed space due to  continuous production of soundrepeated reflections of soundincrease in frequency of soundsingle vibration of a sound sourcefrom the walls, ceiling and other surfaces even after the sound source has stopped. In large halls and auditoriums, reverberation is reduced by using sound-absorbing materials such as hard metal sheets and glass surfacesloudspeakers and microphonesbare concrete walls and floorsacoustic panels, curtains, carpets and cushioned seats on the walls, ceilings and floors. These materials absorb a part of the sound energy and increase the speed of soundincrease the frequency of soundreduce repeated reflectionsincrease the pitch of sound, making the sound clearer.