I.S. EN ISO 11904-2:2004
Withdrawn
View Superseded by
ACOUSTICS - DETERMINATION OF SOUND IMMISSION FROM SOUND SOURCES PLACED CLOSE TO THE EAR - PART 2: TECHNIQUE USING A MANIKIN
Hardcopy , PDF
English
01-01-2004
09-30-2021
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.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement principle
5 Instrumentation
5.1 Manikin (head and torso simulator)
5.2 Check of calibration
5.3 Filters
6 Determination of free-field or diffuse-field related
equivalent continuous A-weighted sound pressure level
6.1 Measurement of manikin sound pressure level
6.2 Conversion to free-field or diffuse-field related
sound pressure level
6.3 A-weighting and summation
7 Test report
Annex A (informative) Example of sources of measurement
uncertainty
Annex B (informative) Example of an uncertainty analysis
Bibliography
Provides basic framework measurement methods for sound immission from sound sources placed close to the ear.
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| DIN EN ISO 11904-2:2005-02 | Identical |
| BS EN ISO 11904-2:2004 | Identical |
| NF EN ISO 11904-2 : 2005 | Identical |
| EN ISO 11904-2:2004 | Identical |
| NS EN ISO 11904-2 : 1ED 2005 | Identical |
| NBN EN ISO 11904-2 : 2005 | Identical |
| NEN EN ISO 11904-2 : 2004 | Identical |
| ISO 11904-2:2004 | Identical |
| UNE-EN ISO 11904-2:2005 | Identical |
| IEC 60942:2003 | Electroacoustics - Sound calibrators |
| IEC 60711:1981 | Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts |
| IEC 60268-7:2010 | Sound system equipment - Part 7: Headphones and earphones |
| EN 50332-1:2013 | Sound system equipment: Headphones and earphones associated with personal music players - Maximum sound pressure level measurement methodology - Part 1: General method for "one package equipment" |
| IEC 60268-1:1985 | Sound system equipment. Part 1: General |
| ISO 11904-1:2002 | 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) |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
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