60318-3-2014 Electroacoustics – Simulators of human head and ear – Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry (Edition 2.0) 标准

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标准号: 60318-3-2014
发布日期: 2014年12月01日
实施日期: 2014年12月13日
废止日期: 无
中国标准分类号: /
国际标准分类号: /
发布单位: IEC - International Electrotechnical Commission
引用标准: 28

适用范围: 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 specifying reference equivalent threshold sound pressure levels (RETSPL) for the calibration of audiometers.

60318-3-2014Electroacoustics – Simulators of human head and ear – Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry (Edition 2.0)

60318-3-2014
Electroacoustics – Simulators of human head and ear – Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry (Edition 2.0)