In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time after the direct sound. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room. A true echo is a single reflection of the sound source. The time delay is the extra distance divided by the speed of sound.">In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time after the direct sound. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room. A true echo is a single reflection of the sound source. The time delay is the extra distance divided by the speed of sound.
Echoes means the repetition of a sound caused by the refection of sound and waves.
Reverberations.
Echoes of sound and images in a mirror involves sound waves and light waves respectively being reflected off a surface.
Sonar uses echoes to locate objects by bouncing sound waves off them and detecting the echoes.
Echoes
its reverberation
They HEAR using their ears but they use the echoes of the sounds they make to build a "sound picture" of their surroundings. This is used to avoid collisions and to catch prey. This use of sound and echoes is called "echo location".
The word you want is reverb.
It bounces back; echoes.
Reflection.
cause the sound bounces off other mountains and you hear the echoes.
Repeated echoes are called reverberations. They occur when sound waves reflect off surfaces multiple times, creating a persistence of sound in a space.