Oto-Acoustic Emissions (OAE)

This test is used to determine cochlear status, or the cilia hair function. Normally, the cochlea does not just receive sound, it also produces sounds called (oto-acoutsic emissions) OAEs as the cilia hair cells expand and contract.

During this hearing test no response is required from the patient. The information we gather from the OAE test can be used in one of several ways:

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DID YOU KNOW?

There are four types of oto-acoustic emissions (OAE) that can be measured during the test:

  1. Spontaneous oto-acoustic emissions, which are sounds emitted spontaneously without an acoustic stimulus
  2. Transient oto-acoustic emissions, which are sounds emitted in response to acoustic stimuli of very short duration such as clicks or tone bursts
  3. Distortion product oto-acoustic emissions, which are sounds emitted in response to two simultaneous tones
  4. Sustained-frequency oto-acoustic emissions, which are sounds emitted in response to a continuous tone or sound.
oto-acoustic emissions

Photo from NIH News