Millions of Americans experience some degree of hearing loss. The Social Security
Administration (SSA) operates programs that provide cash disability benefits to people with …

Tympanometry provides useful quantitative information about the presence of fluid in the
middle ear, mobility of the middle ear system, and ear canal volume. Its use has been …

The purpose of this study was to examine wideband energy reflectance (ER) at ambient
pressure in adults with a variety of middle-ear disorders. The ER results from 9 participants …

Acoustic impedance/reflectance measurements were made at various ear-canal pressures
in 20 subjects with a clinical acoustic immittance instrument and an experimental …

Objective: The major goal of this study was to examine differences in the middle ear
mechano-acoustical properties of normal ears and ears with surgically confirmed …

The aims of the study were to evaluate tympanometry with regard to age and classification
system using two probe-tone frequencies and to provide clinical guidelines. Methods: Six …

Objectives: Wideband acoustic immittance (WAI) measures such as pressure reflectance,
parameterized by absorbance and group delay, equivalent admittance at the tympanic …

Multifrequency tympanometry has emerged as a clinically feasible test with the advent of
computer-controlled systems that can store and analyze complex immittance components at …

Studies that have examined age effects in the human middle ear using either admittance
measures at 220 or 660 Hz or multifrequency tympanometry from 200 to 2000 Hz have had …

Objective: This study examined differences between a group of normal-hearing Caucasian
and Chinese young adults on six tympanometric parameters. The goal of this study was to …