GOST R ISO 8253-2-2012 Acoustics Audiometric test methods Part 2 Sound field audiometry with pure-tone and narrow-band test signals《声学 听力测试方法 第2部分 纯音及窄带测试信号声场测听法》.pdf

《GOST R ISO 8253-2-2012 Acoustics Audiometric test methods Part 2 Sound field audiometry with pure-tone and narrow-band test signals《声学 听力测试方法 第2部分 纯音及窄带测试信号声场测听法》.pdf》由会员分享，可在线阅读，更多相关《GOST R ISO 8253-2-2012 Acoustics Audiometric test methods Part 2 Sound field audiometry with pure-tone and narrow-band test signals《声学 听力测试方法 第2部分 纯音及窄带测试信号声场测听法》.pdf（20页珍藏版）》请在麦多课文档分享上搜索。

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3、rt 2. Sound field audiometry with pure-tone and narrow-band test signals 201312011 ( ) -, , - , , . , , - 125 8000 , 20 16000 . -, . , , . .2 : 226 . (ISO 226, Acoustics Normalequal-loudness-level contours) 266 . (ISO 266, Acoustics Preferred frequencies) 389-7 . . 7. (ISO 389-7, Acoustics Reference

4、 zero for the calibration of audiometric equipment Part 7:Reference threshold of hearing under free-field and diffuse-field listening conditions) 8253-1:2010 . . 1. - (ISO 8253-1:2010, Acoustics Audiometric testmethods Part 1: Basic pure-tone air and bone conduction threshold audiometry) 60581-7 . -

5、 . 7. (IEC 60581-7, Highfidelity audio equipment and systems Minimum performance requirements Part 7: Loudspeakers) 60645-1 . . 1. (IEC 60645-1, Electroacoustics Audiometric equipment Part 1: Equipment forpure-tone audiometry) 61672-1 . . 1. (IEC 61672-1,Electroacoustics Sound level meters Part 1: S

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