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 widespread acoustic phenomenon that happens when sound waves bounce off laborious surfaces, akin to partitions, mountains, and even clouds, and return to the supply. The mirrored sound might be perceived as a repetition of the unique sound, creating an auditory impact generally known as an echo.
Echoes can fluctuate in period and depth relying on the space between the sound supply and the reflecting floor. In some circumstances, echoes might be useful, akin to in sonar techniques used for underwater navigation and imaging. In different circumstances, echoes might be undesirable, akin to in live performance halls or auditoriums the place they will intrude with the readability of sound.
