Acoustics--Reference zero for the calibration of audiometric equipment--Part 7:Reference threshold of hearing under free-field and diffuse-field listening conditions
基本信息
标准号:
GB/T 4854.7-1999
名称:
声学 校准测听设备的基准零级 第7部分:自由场与扩散场测听的基准听阈
英文名称:
Acoustics--Reference zero for the calibration of audiometric equipment--Part 7:Reference threshold of hearing under free-field and diffuse-field listening conditions