When sound is reflected from floor, ceiling or a wall, it mixes with the original sound and changes its complexion, it is called as:

(A) Sound
(B) Echo
(C) Reverberation
(D) Noise

Q. The process of reducing the level of reverberation in a sound or signal is:
(A) Dereverberation
(B) Antireverberation
(C) Unreverberation
(D) None of these

Q. A reflection of sound that arrives at the listeners with a delay after the direct sound is called:
(A) Noise
(B) Echo
(C) Reverberation
(D) None of these

Answers:
1. (C) Reverberation
2. (A) Dereverberation
3. (B) Echo