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  1. 060 工学部
  2. 0601 学術論文

Numerical Simulation of Air Flow through Glottis during Very Weak Whisper Sound Production

http://hdl.handle.net/10091/15983
869cf07a-5c3b-4da0-a68f-99ad222d1daa
名前 / ファイル ライセンス アクション
Numerical_Simulation_Air_Flow_through_Glottis.pdf Numerical_Simulation_Air_Flow_through_Glottis.pdf (948.8 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2012-09-21
タイトル
言語 en
タイトル Numerical Simulation of Air Flow through Glottis during Very Weak Whisper Sound Production
言語
言語 eng
キーワード
主題Scheme Other
主題 non-audible murmur
キーワード
主題Scheme Other
主題 whispered voice
キーワード
主題Scheme Other
主題 whispered voice production mechanism
キーワード
主題Scheme Other
主題 computational fluid dynamics
キーワード
主題Scheme Other
主題 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

WEKO 37769

Otani, Makoto

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Hirahara, Tatsuya

× Hirahara, Tatsuya

WEKO 37770

Hirahara, Tatsuya

Search repository
出版者
出版者 IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
引用
内容記述タイプ Other
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
抄録
内容記述タイプ Abstract
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)
内容記述タイプ Other
内容記述 Article
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
関連識別子
識別子タイプ URI
関連識別子 http://search.ieice.org/
関連名称
関連名称 http://search.ieice.org/
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1587/transfun.E94.A.1779
関連名称
関連名称 10.1587/transfun.E94.A.1779
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
表示名 Web of Science
URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000294701900001
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