Ehco and Reverberation Time Sound waves can be reflection by large, hard surfaces like buildings, walls and cliffs. If the reflected sound is hard as a separant sound after an interval of silence, it is caalled an echo.
Ehco and Reverberation TimeSound waves can be reflection by large, hard surfaces like buildings, walls and cliffs. If the reflected sound is hard as a separant sound after an interval of silence, it is caalled an echo.