Assessment of Conductive Dysfunction: Wideband Acoustic Immittance

Assessment of Conductive Dysfunction: Wideband Acoustic Immittance

The conductive mechanism plays an important role in our hearing: the first stage of signal processing in the auditory system. While it consists of the ear canal, the crucial portion is the middle ear system, which transforms airborne sound into mechanical vibration and helps improve sound transmission into the fluid-filled inner ear. Hearing loss due to dysfunction of the middle ear system may ...

Wideband acoustic immittance: Concepts and clinical utility

Measurements of middle ear (ME) acoustic power flow and related measures (e.g., reflectance, absorbance, impedance, resistance, and reactance) have several important advantages over other measures of acoustic impedance, such as the clinical “gold standard” measure, tympanometry. In addition to its wide bandwidth and ease of use, the absorbance curve, on a dB scale, has a shape that is similar t...

Effects of Negative Middle Ear Pressure on Wideband Acoustic Immittance in Normal-Hearing Adults.

OBJECTIVES Wideband acoustic immittance (WAI) measurements are capable of quantifying middle ear performance over a wide range of frequencies relevant to human hearing. Static pressure in the middle ear cavity affects sound transmission to the cochlea, but few datasets exist to quantify the relationship between middle ear transmission and the static pressure. In this study, WAI measurements of ...

The effect of superior canal dehiscence on wideband acoustic immittance in fresh human cadaveric spec - imens Advisor :

Ear and Hearing Effects of Negative Middle Ear Pressure on Wideband Acoustic Immittance in Normal- Hearing Adults

Abstract: Objectives: Wideband acoustic immittance (WAI) measurements are capable of evaluating middle ear performance over a wide range of frequencies relevant to human hearing. It is known that static pressure in the middle ear cavity affects sound transmission to the cochlea, but only a few data sets exist to quantify the relationship between middle ear transmission and pressure level. The p...