I.S. EN IEC 60318-8:2022
Current
The latest, up-to-date edition.
Electroacoustics - Simulators of human head and ear - Part 8: Acoustic coupler for high-frequency measurements of hearing aids and earphones coupled to the ear by means of ear inserts
Hardcopy , PDF
English
07-06-2022
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
4 Mechanical design of the 0,4 cm3 coupler
5 Calibration
6 Coupling of receivers and hearing aids to the coupler
7 Maximum permitted expanded uncertainty for coupler conformance testing
Annex A (informative) Example of a method for verification of the effective volume of the coupler
Annex B (informative) Example of a method for the measurement of the acoustic transfer impedance of the 0,4 cm3 coupler
Annex C (informative) Example of one specific design of the coupler
Annex D (informative) Electrical analogue representation of the coupler as a tube model
Annex E (informative) Example assessments of conformance to specifications of this document
Bibliography
This part of IEC 60318 describes an acoustic coupler for loading a hearing aid or insert earphone with a specified acoustic impedance when testing its acoustic performance, in the frequency range up to 16 kHz.
| DocumentType |
Standard
|
| ISBN |
978-2-8322-1092-5
|
| Pages |
82
|
| ProductNote |
The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| IEC 60318-8:2022 | Identical |
| EN IEC 60318-8:2022 | Identical |
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