语音传输指数STI的测量  

Measurement of speech transmission index

作　　者：祝培生[1] 莫方朔[2] ZHU Peisheng;MO Fangshuo(School of Architecture and Fine Art,Dalian University of Technology,Dalian 116023,Liaoning,China;School of Physics Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]大连理工大学建筑与艺术学院,辽宁大连116024 [2]同济大学物理科学与工程学院,上海200092

出　　处：《声学技术》2021年第6期801-806,共6页Technical Acoustics

基　　金：国家自然科学基金资助项目(51778100、11774266、51278078)。

摘　　要：语音传输指数(Speech Transmission Index,STI)是被广泛使用的言语可懂度客观评价参量。尽管国际电工委员会(International Electrotechnical Commission,IEC)标准致力于提供一个确定的STI技术规范,但经过近年的使用发现,在自然声房间和厅堂的STI测量中,仍有一些可能带来较大误差的影响因素没有考虑。这使得按当前标准测得的不同房间的数据之间缺少可比性。结合近年的研究进展,对这些可能的影响因素做出分析并给出了解决方案,以促进STI方法在建筑声学领域的应用与推广。The speech transmission index(STI)is a widely used objective evaluation parameter of speech intelligibility.Although the IEC standard commits to providing a definite STI technical specification,the application of STI in natural sound rooms and auditoria in recent years revealed that some factors that may cause relatively large errors have not been considered,which results in a lack of comparability between the measured data of different rooms according to current standards.Based on the research progress in recent years,these possible influencing factors are analyzed and solutions are proposed to promote the application of STI methods in the field of architectural acoustics.

关 键 词：言语可懂度 客观评价 自然声房间和厅堂 语音传输指数 影响因素 

分 类 号：TU112.4[建筑科学—建筑理论]