question_answer

  What is reverberation? Suggest two methods to reduce it in big halls.

Answer:

          Reverberation The persistence of sound in a big hall due to repeated reflections from the walls, ceiling and floor of the hall is called reverberation.                  Methods to reduce reverberation are (i) Carpets are put on the floor to absorb sound. (ii) Heavy curtains are put on doors and windows to absorb sound.