Question

define the terms:(a) total hear impairment (b)echo

Answer 1

TOTAL HEAR IMPAIRMENT

Hearing loss, also known as hearing impairment, is a partial or total inability to hear.

ECHO

A sound or sounds caused by the reflection of sound waves from a surface back to the listener.

Answer 2

a) Hearing loss, also known ashearing impairment, is a partial ortotal inability to hear. A deaf person has little to no hearing. Hearing loss may occur in one or both ears...

b) 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 proportional to the distance of the reflecting surface from the source and the listener. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room and an empty room. A true echo is a single reflection of the sound source...