2012 Fiscal Year Final Research Report
Study on blind method of estimating room acoustic characteristics without measuring room acoustics
| Project/Area Number |
23650086
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Perception information processing/Intelligent robotics
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| Research Institution | Japan Advanced Institute of Science and Technology |
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Principal Investigator |
UNOKI Masashi 北陸先端科学技術大学院大学, 情報科学研究科, 准教授 (00343187)
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| Co-Investigator(Kenkyū-buntansha) |
AKAGI Masato 北陸先端科学技術大学院大学, 情報科学研究科, 教授 (20242571)
MIYAUCHI Ryota 北陸先端科学技術大学院大学, 情報科学研究科, 助教 (30455852)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 室内音響指標 / 変調伝達関数 / 音声伝送指標 / ブラインド推定 / 残響特性 |
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| Research Abstract |
This study proposed simplified and specified methods of blindly estimating the room acoustic characteristics from observed reverberant speech signals, based on the concept of the modulation transfer function. Results of simulations revealed that the proposed approach could blindly estimate the room acoustic characteristics. Results of experiments also revealed that the proposed approach could be used to effectively estimate the room acoustic characteristics from reverberant speech signals in various room acoustics even if people were in the room.
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