NEN-EN-ISO 11904-1
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)
| Organization: | NEN |
| Publication Date: | 1 November 2002 |
| Status: | active |
| Page Count: | 32 |
| 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.
Document History