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ACOUSTICS - DETERMINATION OF SOUND IMMISSION FROM SOUND SOURCES PLACED CLOSE TO THE EAR - PART 1: TECHNIQUE USING A MICROPHONE IN A REAL EAR (MIRE TECHNIQUE)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2002

Publisher

National Standards Authority of Ireland

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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement principle
5 Instrumentation
   5.1 Ear canal microphone
   5.2 Reference field microphone
   5.3 Check of calibration
   5.4 Filters
6 Subjects
7 Use of ear canal microphone
   7.1 Choice of ear canal measurement position
   7.2 Mounting of microphone
   7.3 Safety
8 Determination of free-field or diffuse-field related
   equivalent continuous A-weighted sound pressure level
   8.1 Measurement of ear canal sound pressure level
   8.2 Conversion to free-field or diffuse-field
         related sound pressure level
   8.3 A-weighting and summation
9 Free-field and diffuse-field frequency response
   for selected ear canal measurement positions
10 Determination of free-field or diffuse-field frequency
   responses
   10.1 Determination of free-field or diffuse-field
         frequency responses
   10.2 Measurement principle
   10.3 Establishment of a free reference sound field
   10.4 Establishment of a quasi-free reference sound field
   10.5 Establishment of a diffuse reference sound field
   10.6 Measurement of the reference sound field
   10.7 Measurement of ear canal sound pressure level
         in reference sound field
   10.8 Determination of free-field or diffuse-field
         frequency response
   10.9 Simplifications in specific cases
   10.10 Optional check of the measurement arrangement
11 Test report
Annex A (informative) Example of sources of measurement
        uncertainty
Annex B (informative) Example of an uncertainty analysis
Bibliography

Defines basic framework measurement methods for sound immission from sound sources placed close to the ear.

DocumentType	Standard
Pages	33
PublisherName	National Standards Authority of Ireland
Status	Current

Standards	Relationship
EN ISO 11904-1 : 2002	Identical
UNI EN ISO 11904-1 : 2006	Identical
BS EN ISO 11904-1:2002	Identical
UNE-EN ISO 11904-1:2003	Identical
ISO 11904-1:2002	Identical
DIN EN ISO 11904-1:2003-02	Identical