Echo (phenomenon)
In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time 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. A true echo is a single reflection of the sound source. The time delay is the extra distance divided by the speed of sound. The word echo derives from the Greek ἠχώ (ēchō), itself from ἦχος (ēchos), "sound".
Read more about Echo (phenomenon): Acoustic Phenomenon, In Computing, In Music, Mythology, Duck's Quack, Famous Echoes
Famous quotes containing the word echo:
“I’ve noticed that the children of other nations always seem precocious. That’s because the strange manners of their elders have caught our attention most and the children echo those manners enough to seem like their parents.”
—F. Scott Fitzgerald (1896–1940)