NEN-EN-ISO 11904-1
Acoustics - Determination of noise emissions from sound sources placed close to the ears - Part 1: Technique using microphones in real aers (MIRE-technique)
| Organization: | NEN |
| Publication Date: | 1 April 2000 |
| Status: | inactive |
| Page Count: | 31 |
| ICS Code (Acoustic measurements and noise abatement in general): | 17.140.01 |
scope:
The standard specifies methods for the measurement of the noise immision caused by the ear- or headphones of electroacoustical reproducing systems (eg. personal listening devices, dictating machines, voice radio communication systems for pilots etc., at workplaces inclusive environmental noise if applicable) and determination of correction factors to determine the free field exposure. Part 2 makes use of miniature microphones in the ear for closed headphones (including hearing protectors with communicating facilities.
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