What is ENT - What does it mean when an audiologist states that you need to mask your hearing in order to verify that you have a hearing loss?
It is possible for loud noises to travel through the skull via bone conduction and be heard in the ear that is not being tested when they are played in the ear that is being tested. This phenomenon, which is known as crossover, has the potential to cloud the findings of measurements performed on the test ear. Therefore, the ear that is not being tested needs to be taken out of the equation for the exam. Masking is the simultaneous transmission of sound to the non-test ear while testing the other ear with the target stimulus; this serves to prevent the non-test ear from interfering with sound perception in the test ear. This is done while testing the other ear with the target stimulus.
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