Otoacoustic Emissions Testing

Otoacoustic emissions testing is a fairly recent addition to our hearing test battery. The test is a quantitative test requiring no response from the person being tested. A series of paired tones are sent into the inner ear through a small probe fit into the outer ear canal. In a healthy ear, the inner ear will respond with a corresponding tone (sometimes referred to as an echo or an emission) that is picked up by a sensitive microphone in the probe tip. The presence of an appropriate emission tells us that the inner ear (cochlea) is responding.


Otoacoustic emissions testing is a valuable tool that allows us to assess the hearing status for hard to test populations from newborns to adults, identify changes to the inner ear before behaviorally a difference is noted and can be used to test the effects of ototoxic drugs.

Communication Disorders and Sciences Office

W123 Thompson Hall
State University of New York at Fredonia
Fredonia, NY 14063
(716) 673-3202