|
JAIST Repository >
b. 情報科学研究科・情報科学系 >
b10. 学術雑誌論文等 >
b10-1. 雑誌掲載論文 >
このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/8804
|
| タイトル: | Bifurcations and chaos in register transitions of excised larynx experiments |
| 著者: | Tokuda, Isao T.
Horáček, Jaromir
Švec, Jan G.
Herzel, Hanspete |
| 発行日: | 2008-01-14 |
| 出版者: | American Institute of Physics |
| 誌名: | Chaos |
| 巻: | 18 |
| 号: | 1 |
| 開始ページ: | 013102-1 |
| 終了ページ: | 013102-12 |
| DOI: | 10.1063/1.2825295 |
| 抄録: | Experimental data from an excised larynx are analyzed in the light of nonlinear dynamics. The excised larynx provides an experimental framework that enables artificial control and direct observation of the vocal fold vibrations. Of particular interest in this experiment is the coexistence of two distinct vibration patterns, which closely resemble chest and falsetto registers of the human voice. Abrupt transitions between the two registers are typically accompanied by irregular vibrations. Two approaches are presented for the modeling of the excised larynx experiment; one is the nonlinear predictive modeling of the experimental time series and the other is the biomechanical modeling (three-mass model) that takes into account basic mechanisms of the vocal fold vibrations. The two approaches show that the chest and falsetto vibrations correspond to two coexisting limit cycles, which jump to each other with a change in the bifurcation parameter. Irregular vibrations observed at the register jumps are due to chaos that exists near the two limit cycles. This provides an alternative mechanism to generate chaotic vibrations in excised larynx experiment, which is different from the conventionally known mechanisms such as strong asymmetry between the left and right vocal folds or excessively high subglottal pressure. |
| Rights: | Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Isao T. Tokuda, Jaromir Horáček, Jan G. Švec, Hanspeter Herzel, Chaos, 18(1), 013102 (2008) and may be found at http://link.aip.org/link/?CHAOEH/18/013102/1 |
| URI: | http://hdl.handle.net/10119/8804 |
| 資料タイプ: | publisher |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
|
このアイテムのファイル:
| ファイル |
記述 |
サイズ | 形式 |
|---|
| B13126.pdf | | 1281Kb | Adobe PDF | 見る/開く |
|
当システムに保管されているアイテムはすべて著作権により保護されています。
|
