Question

torm.
Define the following
Echo.​

Answer 1

$\huge\tt\underline\red{Answer}$

In audio signal processing and acoustics, echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the listener. A true echo is a single reflection of the sound source .

$\large\colorbox{orange}{May Be Helpful ✌️ Dear ✌️}$

Answer 2

Answer:

Echo is the sound heard after reflection from a rigid surface such as a cliff, a hillside, the wall of a building etc. ... So from the rigid surface because the sound heard after the reflection.

Explanation:

MARK ME BRAINLIEST