NEN 10303
IEC provisional reference coupler for the calibration of earphones used in audiometry
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 August 1971 |
| Status: | inactive |
| ICS Code (Accessories): | 33.160.50 |
| ICS Code (Electroacoustics): | 17.140.50 |
scope:
This Report describes an interim reference coupler for loading an earphone with a specified acoustic impedance, when calibrating audiometers, in the frequency range of 125 Hz to 8000 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 IEC recommends its use as a simple and ready means for the exchange of specifications on audiometers and for the calibration of earphones used in audiometry.
Document History
NEN 10303
August 1, 1971
IEC provisional reference coupler for the calibration of earphones used in audiometry
This Report describes an interim reference coupler for loading an earphone with a specified acoustic impedance, when calibrating audiometers, in the frequency range of 125 Hz to 8000 Hz. The sound...