Draft Document - Electroacoustics - Simulators of human head and ear - Part 8: Acoustic coupler for high-frequency measurements of hearing aids and earphones coupled to the ear by means of ear inserts (IEC 29/1076/CDV:2021); German and English version prEN IEC 60318-8:2021
文件草案.电声学.人头和耳朵模拟器.第8部分:通过耳塞连接到耳朵的助听器和耳机的高频测量用声耦合器(IEC 29/1076/CDV:2021);德文和英文版本prEN IEC 60318-8:2021