Phonation Model Based on Self-Exited Oscillation of Vocal Chords

基于声带自激振荡的发声模型

• 批准号: 08455090
• 负责人: MATSUZAKI Yuji
• 金额: $ 4.99万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08455090/
• 关键词: Glottal Flow; Flow Visualization; Flow Theory; Separated Flow; Reattached Flow; Phonation; Vocal Cord Model; Self-Excitation

In phonation, the air from the lung is coupled with the motion of vocal cords to oscillate self-excitedly. This seif-excited oscillation provides sound sources. In this research, using a quasi-two dimensional flow channel, we performed a model experiment collect basic but refined data on steady and unsteady static preassures of separated and unseparated flows. Also, visualization on separated and reattached flows was made using a laser flow meter to trace many tiny polymer particles flowing with the fluid. secondly, using the experimental data mentioned above, we proposed an unsteady compressible and separable glottal flow theory. Finally using the proposed flow theory and a one-dimensional vocal cord-airway model, we performed a simulation analysis of voice production for heavy voice and falsetto.

在发声时，来自肺部的空气与声带的运动相耦合，以自激振荡。这种自激振荡提供了声源。在本研究中，我们利用准二元流道进行了一个模型实验，收集了分离流和未分离流的定常和非定常静态压力的基本但精确的数据。此外，分离和再附着流的可视化，使用激光流量计跟踪许多微小的聚合物颗粒与流体流动。其次，利用上述实验数据，提出了一个非定常可压缩可分离声门流理论。最后，利用所提出的流理论和一个一维的声带-气道模型，我们进行了模拟分析的发声沉重的声音和假声。

项目成果

Yuji Matsuzaki: "Flow Separation and Reattachment Criteria in Biological Tubes." Proceed.of ASME Summer Bioeng.Conf.BED-Vol.35. 277-278 (1997)

Yuji Matsuzaki：“生物管中的流动分离和重新附着标准。”

池田忠繁: "声帯の衝突を考慮した二次元声帯モデル" 日本機械学会論文集(C編). 63・607. 1-7 (1997)

Tadashige Ikeda：“考虑声带碰撞的二维声带模型”日本机械工程学会论文集（ed.C）63・607（1997）。

Tadashige Ikeda: "Effects of Collision of the Vocal Cords on Speach Sound Waves" Proceedings of ASME Summer Bioengineering Conference. BED-Vol.35. 65-66 (1997)

Tadashige Ikeda：“声带碰撞对语音声波的影响”ASME 夏季生物工程会议论文集。

Yuji Matsuzaki: "Experiment on Steady and Oscillatory Flows at Moderate Reynolds Number in a Quasi-Two-Dimensional Channel with a Throat" J.Biomechanical Engineering. (印刷中). (1998)

Yuji Matsuzaki：“带喉部的准二维通道中的中等雷诺数稳态和振荡流实验”J.Biomechanical Engineering（出版中）。

Yuji Matsuzaki: "Experiment on Steady and Oscillatory Flows at Moderate Reynolds Number in a Quasi-Two-Dimensional Channel with a Throat." J.Biomechanical Engineering. (Printing).

Yuji Matsuzaki：“带喉部的准二维通道中中等雷诺数的稳态和振荡流实验。”