| Project/Area Number |
24560727
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Architectural environment/equipment
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| Research Institution | Nagano National College of Technology |
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Principal Investigator |
NISHIKAWA YOSHIO 長野工業高等専門学校, 環境都市工学科, 教授 (20513807)
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| Co-Investigator(Renkei-kenkyūsha) |
HASHIMOTO Norihisa 八戸工業大学, 工学系研究科, 教授 (90265957)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 音声伝送性能 / STI / 実時間STI / スピーチレベル / ノイズレベル / 聴き取りやすさ / 聴き取り間違い / 主観評価 / 話声 / 実時間分析 |
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| Outline of Final Research Achievements |
Speech transmission performance is important acoustical functions of the classroom and lecture room. STI（Speech Transmission Index）is used performance evaluation of speech transmission. Real time STI (RT-STI) can be obtained from a real time analysis of speech and noise. Examine subjective evaluation (listening difficulty and intelligibility) in real sound field. The following presents the results
It became clear that there is a strong correlation between RT-STI and measurements speech level. By the proposal subjectivity evaluation experiment the difference among the individuals became smaller.
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