IEC 61669 : 2.0
IEC 61669 : 2.0
ELECTROACOUSTICS - MEASUREMENT OF REAL-EAR ACOUSTICAL PERFORMANCE CHARACTERISTICS OF HEARING AIDS
International Electrotechnical Committee
ELECTROACOUSTICS - MEASUREMENT OF REAL-EAR ACOUSTICAL PERFORMANCE CHARACTERISTICS OF HEARING AIDS
International Electrotechnical Committee
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
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.
Document Type | Standard |
Status | Current |
Publisher | International Electrotechnical Committee |
Committee | TC 29 |