I.S. EN ISO 11904-1:2002
Current
The latest, up-to-date edition.
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)
Hardcopy , PDF
English
01-01-2002
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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 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 |
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