Using the Speech Transmission Index for predicting non-native speech intelligibility

• Sander J. van Wijngaarden

  TNO Human Factors, PO Box 23, 3769 ZG Soesterberg, The Netherlands

• Adelbert W. Bronkhorst

  TNO Human Factors, PO Box 23, 3769 ZG Soesterberg, The Netherlands

• Tammo Houtgast

  TNO Human Factors, PO Box 23, 3769 ZG Soesterberg, The Netherlands

• Herman J. M. Steeneken

  TNO Human Factors, PO Box 23, 3769 ZG Soesterberg, The Netherlands

抄録

While the Speech Transmission Index (STI) is widely applied for prediction of speech intelligibility in room acoustics and telecommunication engineering, it is unclear how to interpret STI values when non-native talkers or listeners are involved. Based on subjectively measured psychometric functions for sentence intelligibility in noise, for populations of native and non-native communicators, a correction function for the interpretation of the STI is derived. This function is applied to determine the appropriate STI ranges with qualification labels (“bad”–“excellent”), for specific populations of non-natives. The correction function is derived by relating the non-native psychometric function to the native psychometric function by a single parameter (ν). For listeners, the ν parameter is found to be highly correlated with linguistic entropy. It is shown that the proposed correction function is also valid for conditions featuring bandwidth limiting and reverberation.

収録刊行物

• The Journal of the Acoustical Society of America

  The Journal of the Acoustical Society of America 115 (3), 1281-1291, 2004-02-27

  Acoustical Society of America (ASA)

キーワード

• Acoustics and Ultrasonics
• Arts and Humanities (miscellaneous)

詳細情報

• CRID: 1360011144875305472
• NII論文ID: 30016061990
• DOI: 10.1121/1.1647145
• ISSN: 15208524
• ISSN: 00014966
• Web Site: https://pubs.aip.org/asa/jasa/article-pdf/115/3/1281/12226331/1281_1_online.pdf
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