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An echo.
An echo.
An echo or reverberation.
It is a sound reverberation.
Reverberation
The gaps between the reflections are long when you hear an echo. When the reflections are very close together then you here no single echo, you hear many close reflections as a reverberation.
reflected sound is either reverberation or echo
Sometimes it makes an echo or reverberation.
Repeat, copy, reverberation, parroting, rebound, answer...
Sometimes it makes an echo or reverberation.
Reverberation. Reflection of sound waves off of surfaces can lead to one of two phenomena - an echo or a reverberation. A reverberation often occurs in a small room with height, width, and length dimensions of approximately 17 meters or fewer.
clap and listen for the echo an echo is just a reverberation of sound bouncing off something solid about 17 meters away and returning will produce an echo. You can't litterally find an echo just clap and listen for one.