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 could 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 gap between the sound supply and the reflecting floor. In some instances, echoes could be helpful, akin to in sonar methods used for underwater navigation and imaging. In different instances, echoes could be undesirable, akin to in live performance halls or auditoriums the place they will intervene with the readability of sound.
