“Otoacoustic emissions” are sounds that are produced by healthy ears in response to an external sound stimulation. First described by Kemp in 1978, normal hearing is regulated by a cochlear mechanism, present in the healthy outer hair cell, which magnifies the stimulus internally.
There are certain soft sounds, which a normal ear would produce in the response of the sounds which travel in. OAE or “Otoacoustic emission” testing is the recording of these emissions. Such echoes are not produced by a deaf ear.
