[组合式听力保护器对通信质量和噪声防护效果的研究]
[Study on effects of combined hearing protector on communication quality and noise protection].
作者信息
Li D, Zheng S, He Y
机构信息
Institute of Space Medico-Engineering, Beijing, China.
出版信息
Space Med Med Eng (Beijing). 1997 Oct;10(5):373-5.
To study the communication quality and the protection effects of single protector and the combined ones, sound attenuation experiments and the communication experiments were conducted in 14 male subjects. The results showed that the sound attenuation of combined protectors were 13 dB or 6dB more than that of single earplug or earmuff respectively, and combined protectors could avoid sound attenuation caused by the harmonics on some frequency bands in single one. After combined usage, the single protector reduced the distortion which came from the overload of hearing organs and maintained the communication quality. The combined protector is an effective hearing protection device in high noise environment in aerospace field.
为研究单一保护器与组合式保护器的通信质量及防护效果，对14名男性受试者进行了声衰减实验和通信实验。结果表明，组合式保护器的声衰减分别比单耳塞或单耳罩高13 dB或6 dB，且组合式保护器可避免单一保护器在某些频段因谐波导致的声衰减。联合使用后，单一保护器减少了听觉器官过载产生的失真，维持了通信质量。组合式保护器是航空航天领域高噪声环境下有效的听力保护装置。
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