Acoustic immittance

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Acoustic immittance is a measurement of energy or air pressure flow, which involves the ear canal, eardrum, ossicular chain, tensor tympani, stapedius muscle, cochlea, CNs VII and VIII, and the brainstem. The reciprocal of acoustic immittance is acoustic impedance. Particularly in earlier years, these measurements were performed in impedance rather than immittance measures; thus, the term impedance audiometry is sometimes used.


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