GSO IEC 60318-3:2014

IEC 60318-3:2014
Gulf Standard   Current Edition · Approved on 25 December 2014

Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry

GSO IEC 60318-3:2014 Files

English 24 Pages
Current Edition Reference Language

GSO IEC 60318-3:2014 Scope

This part of IEC 60318 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 specif ying reference equivalent threshold sound pressure levels (RETSPL) for the calibration of audiometers.

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