Additional information on hearing tests, in the event of sudden hearing loss
How does the hearing test work?
During the Fowler test, sounds are alternately sent to both ears. The volume level varies and is adjusted with the help of the person being examined (subjective hearing test) until he or she can hear equally well with both ears. An alignment with the healthy ear serves to determine the audibility threshold and the extent of hearing loss.
How does brainstem electrical response audiometry work?
Brainstem electrical response audiometry (BERA) measures the sound vibrations travelling from the brainstem to the cerebral cortex. If vibrations are measurable in the cerebral cortex, it is usually assumed that the cochlea is not affected. This method assesses hearing impairment regardless of the affected person’s subjective impression (objective hearing test).
How does otoacoustic emission work?
During the otoacoustic emission (OAE) test, a tiny probe equipped with a loudspeaker and microphone is inserted into the ear canal. If the sound vibrations created by the probe penetrate a healthy inner ear, a measurable reaction occurs. This hearing test is often conducted on infants as well as adults, since it does not require the participation of the affected person (objective hearing test).