ASA S3.25-2009 (R2019)
American National Standard for an Occluded Ear Simulator
standard by American National Standards of the Acoustical Society of America, 08/31/2009
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About This Item
Full Description
The acoustical performance of an occluded ear simulator is specified. This device is designed to
simulate the acoustical behavior of the ear canal between the tip of an ear mold and the eardrum,
including the acoustic impedance at the eardrum of a median adult human ear. The occluded ear
simulator is intended for transducers that are sensitive to acoustic load. It is also suitable as the basis
for extensions intended to simulate the complete ear canal and the outer ear (e.g., head and torso
simulators). Specific physical realizations of the ear simulator are described.
