Phonation threshold pressure and onset frequency in a two-layer physical model of the vocal folds |
| |
Authors: | Mendelsohn Abie H Zhang Zhaoyan |
| |
Affiliation: | University of California Los Angeles School of Medicine, 31-24 Rehabilitation Center, 1000 Veteran Avenue, Los Angeles, California 90095-1794, USA. |
| |
Abstract: | The influence of vocal fold geometry and stiffness on phonation onset was experimentally investigated using a body-cover physical model of the vocal folds. Results showed that a lower phonation threshold pressure and phonation onset frequency can be achieved by reducing body-layer or cover-layer stiffness, reducing medial surface thickness, or increasing cover-layer depth. Increasing body-layer stiffness also restricted vocal fold motion to the cover layer and reduced prephonatory glottal opening. Excitation of anterior-posterior modes was also observed, particularly for large values of the body-cover stiffness ratio. The results of this study were also discussed in relation to previous theoretical and experimental studies. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|