IEC 61669 : 2.0

IEC 61669 : 2.0

ELECTROACOUSTICS - MEASUREMENT OF REAL-EAR ACOUSTICAL PERFORMANCE CHARACTERISTICS OF HEARING AIDS

International Electrotechnical Committee

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Table of Contents

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Test setup diagrams
5 Limitations
6 Test equipment
7 Test conditions
8 Measurements
9 Measurement uncertainty for the
  performance requirements of Clause 6
Annex A (informative) - Positioning the
        probe microphone sound inlet at the
        measurement point
Annex B (informative) - Issues in RECD
        measurement and application
Annex C (informative) - Relationship between
        tolerance interval, corresponding
acceptance interval and the maximum
        permitted uncertainty of measurement
Bibliography

Abstract

Provides recommendations and requirements for the measurement and estimation of the real-ear acoustical performance characteristics of air-conduction hearing aids and for the measurement of certain acoustic properties of the ear related to the application of hearing aids.

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 29

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