声频特性 meaning in Chinese

audio frequency characteristics

Non - broadcast video tape recorders - methods of measurement - audio characteristics for fm recording
非播放用磁带录像机.测量方法. fm制式录音用声频特性
Audio and audiovisual equipment - digital audio parts - basic methods of measurement of audio characteristics
音频和视听设备.数字声频元件.声频特性测量的基本方法
Non - broadcast videotape recorders ; methods of measurement ; part 3 : audio characteristics for fm recording
非播放用录像机的测量方法.第3部分:用fm制式录音用声频特性