An audiometer that produces pure tone sounds at specific volumes is used to test each ear separately. The auditory threshold for a range of tones is determined by decreasing the volume of each tone until a person can no longer hear it. Audiometric tests can identify the frequencies lost: in middle ear disease, low-frequency loss is common, whereas cochlear nerve damage is associated with high-frequency impairment.
-Titus, A. M. (n.d.). Audiometer. Audiometer - an overview | ScienceDirect Topics. https://www.sciencedirect.com/topics/medicine-and-dentistry/audiometer.
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