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Numerical Simulation of Air Flow through Glottis during Very Weak Whisper Sound Production
http://hdl.handle.net/10091/15983
http://hdl.handle.net/10091/15983869cf07a-5c3b-4da0-a68f-99ad222d1daa
| 名前 / ファイル | ライセンス | アクション |
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Numerical_Simulation_Air_Flow_through_Glottis.pdf (948.8 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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| 公開日 | 2012-09-21 | |||||||||
| タイトル | ||||||||||
| タイトル | Numerical Simulation of Air Flow through Glottis during Very Weak Whisper Sound Production | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| DOI | ||||||||||
| 関連識別子 | https://doi.org/10.1587/transfun.E94.A.1779 | |||||||||
| 関連名称 | 10.1587/transfun.E94.A.1779 | |||||||||
| キーワード | ||||||||||
| 主題 | non-audible murmur, whispered voice, whispered voice production mechanism, computational fluid dynamics, airflow through glottis | |||||||||
| 資源タイプ | ||||||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| タイプ | journal article | |||||||||
| 著者 |
Otani, Makoto
× Otani, Makoto
× Hirahara, Tatsuya
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| 出版者 | ||||||||||
| 出版者 | IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG | |||||||||
| 引用 | ||||||||||
| 内容記述 | IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES. E94A(9):1779-1785 (2011) | |||||||||
| 書誌情報 |
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES 巻 E94A, 号 9, p. 1779-1785, 発行日 2011-09 |
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| 抄録 | ||||||||||
| 内容記述 | A non-audible murmur (NAM), a very weak whisper sound produced without vocal fold vibration, has been researched in the development of a silent-speech communication tool for functional speech disorders as well as human-to-human/machine interfaces with inaudible voice input. The NAM can be detected using a specially designed microphone, called a NAM microphone, attached to the neck. However, the detected NAM signal has a low signal-to-noise ratio and severely suppressed high-frequency component. To improve NAM clarity, the mechanism of a NAM production must be clarified. In this work, an air flow through a glottis in the vocal tract was numerically simulated using computational fluid dynamics and vocal tract shape models that are obtained by a magnetic resonance imaging (MRI) scan for whispered voice production with various strengths, i.e. strong, weak, and very weak. For a very weak whispering during the MRI scan, subjects were trained, just before the scanning, to produce the very weak whispered voice, or the NAM. The numerical results show that a weak vorticity flow occurs in the supraglottal region even during a very weak whisper production; such vorticity flow provide aeroacoustic sources for a very weak whispering, i.e. NAM, as in an ordinary whispering. | |||||||||
| 資源タイプ（コンテンツの種類） | ||||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0916-8508 | |||||||||
| 書誌レコードID | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AA10826239 | |||||||||
| 他の資源との関係：URI | ||||||||||
| 識別子タイプ | URI | |||||||||
| 関連識別子 | http://search.ieice.org/ | |||||||||
| 関連名称 | http://search.ieice.org/ | |||||||||
| 権利 | ||||||||||
| 権利情報 | Copyright© 2011 IEICE | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| WoS | ||||||||||
| URL | http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000294701900001 | |||||||||
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Cite as
Otani, Makoto, Hirahara, Tatsuya, 2011, Numerical Simulation of Air Flow through Glottis during Very Weak Whisper Sound Production: IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, 1779–1785 p.
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