Echo, from the Greek phrase “” (ch), refers to a sound or sequence of sounds attributable to the reflection of sound waves from a floor again to the listener. It’s a frequent acoustic phenomenon that happens when sound waves bounce off exhausting surfaces, akin to partitions, mountains, and even clouds, and return to the supply. The mirrored sound will be perceived as a repetition of the unique sound, creating an auditory impact generally known as an echo.
Echoes can differ in length and depth relying on the space between the sound supply and the reflecting floor. In some circumstances, echoes will be useful, akin to in sonar methods used for underwater navigation and imaging. In different circumstances, echoes will be undesirable, akin to in live performance halls or auditoriums the place they’ll intrude with the readability of sound.
