What is difference between echo and reverberation?
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In audio signal processing and acoustics, echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the listener. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room and an empty room. A true echo is a single reflection of the sound source.
Reverberation, in psychoacoustics and acoustics, is a persistence of sound after the sound is produced.A reverberation, or reverb, is created when a sound or signal is reflected causing numerous reflections to build up and then decay as the sound is absorbed by the surfaces of objects in the space – which could include furniture, people, and air.This is most noticeable when the sound source stops but the reflections continue, their amplitude decreasing, until zero is reached.
Answer:
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Echo is a single reflection of a sound wave off a surface. Reverberation is the sound or the pattern created by the superposition of such echoes. ... A reverberation can occur when sound wave is reflected by a nearby wall also
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