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音响系统设备: 便携式音频播放设备用头戴式受话器和耳机. 最大声压级测量方法. 音量管理测量方法
Sound system equipment: headphones and earphones associated with personal music players. Maximum sound pressure level measurement methodology. Measurement method for sound dose management
参考页数:18P.;A4
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电声学.测量传声器.用互易技术校准实验室标准传声器自由场的基本方法
Electroacoustics. Measurement microphones. Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
参考页数:36P.;A4
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定向扬声器阵列系统声场的质量评估方法
Quality evaluation method for the sound field of directional loudspeaker array system
参考页数:20P.;A4
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煤矿用地下扩音通信系统规范
Specification for underground loudspeaker communication systems in coal mines
参考页数:8P.;A4
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高保真度音频设备及系统最低性能要求 第7部分:扬声器规范
High fidelity audio equipment and systems; minimum performance requirements - Specification for loudspeakers
参考页数:12P;A4
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测量传声器.频率响应的测定用静电促动器
Measurement microphones - Electrostatic actuators for determination of frequency response
参考页数:30P.;A4
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高保真度音频设备及系统.最低性能要求.传声器规范
High fidelity audio equipment and systems; minimum performance requirements - Specification for microphones
参考页数:8P.;A4
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音响系统设备.扬声器收听试验
Sound system equipment - Listening tests on loudspeakers
参考页数:22P.;A4
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计量扩音器.实验室标准扩音器的自由场与声压灵敏度水平差值评估
Measurement microphones - Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones
参考页数:12P.;A4
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语音通信用传声器和耳机
Microphones and earphones for speech communications
参考页数:34P.;A4
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