| Project/Area Number |
25280066
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Perceptual information processing
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| Research Institution | Konan University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
伊藤 仁 東北工業大学, 工学部, 准教授 (00436164)
蒔苗 久則 科学警察研究所, 法科学第四部, 主任研究官 (20415441)
齋藤 毅 金沢大学, 電子情報学系, 助教 (70446962)
網野 加苗 科学警察研究所, 法科学第四部, 研究員 (70630698)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKEMOTO Hironori 千葉工業大学, 先進工学部, 教授 (40374102)
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| Project Period (FY) |
2013-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Keywords | MRI / 声道 / 音声の個人性 / 鼻腔 / 副鼻腔 / 数値音響解析 / 音声科学 / 音響計測 / 発話器官モデル / MRI・音声データベース / 時間領域差分法 / FDTD法 / 機械学習 / 磁気共鳴画像法 / 音声生成 / 磁気センサシステム / EMA / 声優 / 発話器官 / 個人性 / 音声 / 音響解析 / 調音運動 / 母音 |
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| Outline of Final Research Achievements |
This research project explored physical basis of diversity of voice quality using observation methods and computational acoustics that the project members have developed. This project achieved the followings; (1) The three-dimensional (3D) shape and movements of the speech organs were measured by an MRI scanner using a synchronized sampling method during continuous speaking and a database for 11 adults was constructed. (2) A tongue model was developed based on the database. (3) The acoustic characteristics of the nasal and paranasal cavities, which contribute largely to the voice quality, were investigated by an acoustic measurement method and a numerical acoustic analysis method. (4) The vocal tract of a professional voice impersonator and three voice actors were measured and analyzed. (5) The five-degrees-of-freedom sensors of an electromagnetic articulography system was improved to reduce interference in articulation. The proposed sensors have been made available commercially.
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