A two-dimensional flexible channel model of the vocal folds coupled with an unsteady one-dimensional flow model is presented for an analysis of the mechanism of phonation. The vocal fold is approximated by springs and dampers distributed in the main flow direction that are enveloped with an elastic cover. In order to approximate three-dimensional collision of the vocal folds using the two-dimensional model, threshold values for the glottal width are introduced. The numerical results show that the collision plays an important role in speech sound, especially for higher resonant frequency components, because it causes the source sound to include high-frequency components.
A Numerical Analysis of Phonation Using a Two-Dimensional Flexible Channel Model of the Vocal Folds
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division May 31, 2000; revised manuscript received July 25, 2001. Associate Editor: J. B. Grotberg.
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Ikeda, T., Matsuzaki, Y., and Aomatsu, T. (July 25, 2001). "A Numerical Analysis of Phonation Using a Two-Dimensional Flexible Channel Model of the Vocal Folds ." ASME. J Biomech Eng. December 2001; 123(6): 571–579. https://doi.org/10.1115/1.1408939
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