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随着电子设备的发展,人们对耳机的使用越来越频繁,使用耳机可能产生的听力损伤风险也越来越引发人们的关注。上海市质监局于全国爱耳日当天发布耳机产品质量安全风险监测结果。耳机声压级是造成听力损伤的主要风险源,限制宽频特征电压(宽频特征电压是耳机的一项基本参数,在相同的条件下,宽频特征电压越低,电声转换效率越高,耳机输出的声压级越高),能够起到
With the development of electronic devices, people are using the earphones more and more frequently, and the risk of hearing loss that may be caused by using the earphones is also attracting more and more attention. Shanghai Municipal Bureau of Quality Supervision on the day of the national love ear headphones product quality and safety risk monitoring results. Headphone sound pressure level is the main source of hearing impairment, limiting the broadband feature voltage (broadband feature voltage is a basic parameter of the headset, under the same conditions, the lower the broadband characteristic voltage, the higher the electro-acoustic conversion efficiency, headphone output The higher the sound pressure level), can play