Objective: Reflectance measured in the ear canal offers a noninvasive method to monitor the
acoustic properties of the middle ear, and few systematic measurements exist on the effects …

The wideband energy reflectance (ER) technique has become popular as a tool for
evaluating middle ear function. Negative middle ear pressure (MEP) is a prevalent form of …

Objectives: The development of acoustic reflectance measurements may lead to
noninvasive tests that provide information currently unavailable from standard audiometric …

In an earlier article in this supplement, Rosowski et al.(pp. 9S–16S) define acoustic
immittance, reflectance, absorbance, and power reflectance (PR), and describe their …

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 …

A number of acoustical applications require the transformation of acoustical quantities, such
as impedance and pressure that are measured at the entrance of the ear canal, to quantities …

Objective: Recent studies have suggested the potential of wideband energy reflectance (ER)
for the assessment of middle ear disorders. The purpose of this study was to examine the …

At frequencies greater than 2 kHz the acoustic impedance at the human eardrum is an
unreliable indicator of the behavior of the middle ear system because of the complicated …

Measurements of middle ear (ME) acoustic power flow (power reflectance, power
absorption, and transmittance) and normalized impedance (acoustic resistance, acoustic …

Objective: This study compares measurements of ear-canal reflectance (ECR) to other
objective measurements of middle ear function including audiometry, umbo velocity (VU) …