Abstract
Phonation threshold pressure in a physical model of the vocal folds
The Journal of the Acoustical Society of America, Vol.94(3_Supplement), pp.1762-1762
09/01/1993
DOI: 10.1121/1.408054
Abstract
A physical model of a vocal fold was constructed with three layers: an artificial epithelium (latex), a superficial Reinke’s space (water), and an immobile vocal fold body (aluminum). This vocal fold was positioned in a plexiglas airway such that the glottal aperture and the convergence angle could be varied systematically with respect to a solid boundary, which represented the opposite vocal fold in a hemilarynx configuration. Subglottal pressure was controlled with a constant pressure valving system. Phonation threshold pressure (the Hopf bifurcation in nonlinear dynamics) was measured as a function of glottal aperture and divergence angle. This pressure increases with increased aperture and convergence, as predicted by theory, but results for a divergent glottis are not as easy to interpret. [This research was supported by Grant No. P60 DC00976 from the National Institute on Deafness and Other Communication Disorders.]
Details
- Title: Subtitle
- Phonation threshold pressure in a physical model of the vocal folds
- Creators
- Ingo R. Titze - University of IowaMichael R. Titze - University of Iowa
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.94(3_Supplement), pp.1762-1762
- DOI
- 10.1121/1.408054
- ISSN
- 0001-4966
- Number of pages
- 1
- Language
- English
- Date published
- 09/01/1993
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719742902771
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