GB/T 25498.3-2010
ActiveElectroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
电声学 人头模拟器和耳模拟器 第3部分：校准压耳式测听耳机用声耦合器
Application Summary AI generated
This standard specifies the structure, dimensions, and acoustic performance requirements for an acoustic coupler used to calibrate supra-aural earphones in audiometric testing. It is applied in metrology laboratories and hearing healthcare settings to ensure accurate and reproducible sound pressure level measurements during hearing threshold assessments. The standard supports the verification of audiometric equipment compliance with international electroacoustic norms.
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