It also measures any impedance to passage of sound energy, namely, middle ear fluid. It does not test hearing acuity. The compact acoustic impedance instrument consists of a pressure pump ...

Similar to tympanometry, this procedure measures changes in impedance within the middle ear system. The peak pressure of the preceeding tympanometry test is applied during the Acoustic Reflex ...

This article shows you how to perform an AirPods Pro Ear Tip Fit Test, which checks the fit of your AirPods ear tips to determine which size provides the best seal and acoustic performance.