上海会议室语音清晰度测试价格 开放办公室声学测试 机构

IEC 60268-16:2011 specifies objective methods for rating the transmission quality of speech with respect to intelligibility. It provides a comprehensive manual for all types of users of the STI method in the fields of audio, communications and acoustics. Three methods are presented, which are closely related and are referred to as STI, STIPA, and STITEL. The first two methods are intended for rating speech transmission performance with or without sound systems. The STITEL method has more restricted uses.

与语音清晰度相关的标准
GB/T 36075.3-2018声学 室内声学参量测量 *3部分:开放式办公室
GB/T 4959-2011 厅堂扩声特性测量方法
JGJ/T 131-2012体育场馆声学设计及测量规程

测试方法
EC 60268-16:2011 Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index