What do you understand by echo?
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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.
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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. ... 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.
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