Table of Contents

FOREWORD<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Construction<br>&nbsp;&nbsp;4.1 General<br>&nbsp;&nbsp;4.2 Tolerances<br>&nbsp;&nbsp;4.3 Static pressure equalisation<br>&nbsp;&nbsp;4.4 Calibrated pressure-type microphone<br>&nbsp;&nbsp;4.5 Material<br>&nbsp;&nbsp;4.6 Measurement plane<br>&nbsp;&nbsp;4.7 Acoustic transfer impedance<br>5 Coupling of earphone to ear simulator<br>&nbsp;&nbsp;5.1 Supra-aural earphones<br>&nbsp;&nbsp;5.2 Circumaural earphones<br>6 Calibration<br>&nbsp;&nbsp;6.1 Reference environmental conditions<br>&nbsp;&nbsp;6.2 Method of calibration<br>7 Maximum permitted expanded uncertainty of measurements<br>Annex A (informative) Lumped-parameter electrical <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;network analogue of the ear simulator<br>Annex B (informative) Example of one specific design <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of ear simulator<br>Annex C (informative) Measurement method for the<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;determination of the acoustical transfer <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;impedance of the ear simulator<br>Bibliography

Abstract

Describes an ear simulator for the measurement of supra-aural and circumaural earphones (used for example in audiometry and telephonometry) applied to the ear without acoustical leakage, in the frequency range from 20 Hz to 10 kHz.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 29