Sound system equipment - objective rating of speech intelligibility by speech transmission index 音响系统设备.用语音传输系数测定语音清晰度的目标额定功率
3.
Sound system equipment - part 16 : objective rating of speech intelligibility by speech transmission index 声系统设备.第16部分:用语音传输系数测定语音清晰度的目标额定功率
4.
Sound system equipment - part 16 : objective rating of speech intelligibility by speech transmission index 音响系统设备.第16部分:用语音传输索引对语言的可懂度进行可观分级
5.
Sound system equipment - part 16 : objective rating of speech intelligibility by speech transmission index iec 60268 - 16 : 2003 ; german version en 60268 - 16 : 2003 声系统设备.第16部分:用语音传输系数测定语音清晰度