Speech intelligibility in class and alleviation of teachers' vocal abuse by sound field amplification in elementary schools

Kiyohiro Kurisu, Kimio Shiraishi, Ryoko Nakamura

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抜粋

Speech Transmission Index (STI) is degraded by the actual ambient noise in class even though STI measured in empty classroom indicates excellent speech intelligibility. The more degraded intelligibility might be observed when teachers speak in normal voice. So they are forced to raise their voice and push them too hard to accomplish high speech intelligibility. In this report, STIs in empty classroom and in actual class are compared, and the estimation of speech intelligibility in class is estimated. Also, to reduce teachers' vocal abuse, sound reinforcement systems are installed in elementary school classrooms for sound field amplification. Vanishing their vocal abuse and maintaining the speech intelligibly, the sound systems are evaluated approvingly by the teachers.

元の言語英語
ホスト出版物のタイトル38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
ページ4794-4802
ページ数9
出版物ステータス出版済み - 12 1 2009
イベント38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 - Ottawa, ON, カナダ
継続期間: 8 23 20098 26 2009

出版物シリーズ

名前38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
7

その他

その他38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
カナダ
Ottawa, ON
期間8/23/098/26/09

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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  • これを引用

    Kurisu, K., Shiraishi, K., & Nakamura, R. (2009). Speech intelligibility in class and alleviation of teachers' vocal abuse by sound field amplification in elementary schools. : 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 (pp. 4794-4802). (38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009; 巻数 7).