ear simulator

7.52  ear simulator. Device which approximates the acoustic transfer impedance of the inner part of the human ear canal, from the tip of an ear mold to the eardrum.

Annotation 1          Ear simulators fall into the following four categories:

• acoustic couplers;
• artificial ears/occluded ear simulators;
• head and torso simulators (HATS);
• mechanical couplers for the calibration of bone vibrators.

Annotation 2          See ANSI/ASA S3.25 American National Standard for an Occluded Ear Simulator.

Annotation 3          The term “ear canal” may also be used as one word “earcanal.”