Table of Contents

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
4 Mechanical design of the 0,4 cm[3] coupler
5 Calibration
6 Coupling of receivers and hearing aids to the
   coupler
7 Transfer impedance of the 0,4 cm[3] coupler
8 Comparison of the 0,4 cm[3], the 2 cm[3] coupler
   and the occluded-ear simulator
9 Maximum permitted expanded uncertainty for
   coupler conformance testing
10 Measurements using the 0,4 cm[3] coupler
Annex A (informative) - Response transforms
        between the 0,4 cm[3] coupler and the
        occluded-ear simulator
Annex B (informative) - Measurement and modeling
        of the transfer impedance of the 0,4 cm[3]
        coupler
Bibliography

Abstract

Defines a coupler and measurement methods to characterise the electroacoustic performance of hearing aids and insert earphones primarily in the range of 8 kHz to 16 kHz.

General Product Information

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