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 proportional
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As a result of reflection of sound wave from a large obstacle, the sound is heard
which is named as an echo. Ordinarily echo is not heard as the reflected sound ...
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Nov 9, 2005 ... Explanation of echoes made by sound. ... How can we hear an echo? How are
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Echo - Echoes and Doppler shift are two effects that are key to understanding
radar. Learn about echoes, Doppler shift and sonic booms.
Echo the Bat. In the upper elevations of Arizona, there was a forest of tall
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