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

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 …

Background: Power reflectance measurements are an active area of research related to the
development of noninvasive middle-ear assessment methods. There are limited data related …

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

Wideband reflectance tympanometry was performed on twelve chinchillas ears. The
complex input impedance of the middle ear, multifrequency admittance tympanograms …

Background: Wideband acoustic immittance measurements of the middle ear, such as
wideband energy reflectance (ER), can provide information about how the middle ear …

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 …

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 …

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

Measurements of the ear-canal reflectance using an ear probe require estimating the
characteristic impedance of the ear canal in situ. However, an oblique insertion of the ear …