NEN-EN-IEC 60318-3
Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 March 2015 |
| Status: | active |
| Page Count: | 37 |
| ICS Code (Electroacoustics): | 17.140.50 |
scope:
NEN-EN-IEC 60318-3 specifies an acoustic coupler for the measurement of supra-aural audiometric earphones in the frequency range from 125 Hz to 8 000 Hz. The sound pressure developed by an earphone is not, in general, the same in the coupler as in a person's ear. However, the acoustic coupler can be used as an objective and reproducible means of measuring the output of supra-aural earphones. It can be used for specifying reference equivalent threshold sound pressure levels (RETSPL) for the calibration of audiometers.
Document History
NEN-EN-IEC 60318-3
March 1, 2015
Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
NEN-EN-IEC 60318-3 specifies an acoustic coupler for the measurement of supra-aural audiometric earphones in the frequency range from 125 Hz to 8 000 Hz. The sound pressure developed by an earphone...
November 1, 1998
Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
Describes an acoustic coupler for loading supra-aural audiometric earphones as specified in ISO 389-1 with a specified acoustic impendance, when calibrating audiometers, in the frequency range of 125...