2012 Fiscal Year Final Research Report
How the auditory system makes speech perception noise-tolerant?
| Project/Area Number |
20330152
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Experimental psychology
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| Research Institution | Kyushu University |
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Principal Investigator |
UEDA Kazuo 九州大学, 芸術工学研究院・デザイン人間科学部門/応用知覚科学研究センター, 准教授 (80254316)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAJIMA Yoshitaka 九州大学, 大学院・芸術工学研究院, 教授 (90127267)
SHIRAISHI Kimio 九州大学, 大学院・芸術工学研究院, 教授 (90187518)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 感覚・知覚 / 音声知覚 / 明瞭性 / パワー変化 / 因子分析 / 音素 / 異聴表 / 伝達情報量 |
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| Research Abstract |
Power fluctuations derived from critical-band-filtered spoken sentences in eight languages were analyzed with factor analysis. The analyses consistently yielded three factors and four frequency bands for the languages examined. Perceptual experiments utilizing noise-vocoded speech, in which only power fluctuations in these frequency bands were reflected, revealed that the order of power fluctuations among the bands was one of the important cues in speech perception.
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