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Acoustic Admittance

Acoustic admittance is a measure of the flow of acoustic energy from the outer to the middle ear. Impediments to the transmission of sound due to outer and middle ear disorders may be detectable by this measure. Acoustic admittance has shown promise as an effective measure to assess the integrity of the outer and middle ear system. It is one of the measures of acoustic immittance (a family of measures of the acoustic properties of an acoustic–mechanical system) alongside acoustic susceptance, conductance, and acoustic stapedial reflex measures.

Acoustic immittance measures have become an important component of a clinical test battery to identify conductive pathology in humans. This entry begins with a history of devices to measure acoustic immittance and a discussion of the difference between acoustic ...

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