Journal article
The physics of small-amplitude oscillation of the vocal folds
The Journal of the Acoustical Society of America, Vol.83(4), pp.1536-1552
04/01/1988
DOI: 10.1121/1.395910
PMID: 3372869
Abstract
A theory of vocal fold oscillation is developed on the basis of the body-cover hypothesis. The cover is represented by a distributed surface layer that can propagate a mucosal surface wave. Linearization of the surface-wave displacement and velocity, and further small-amplitude approximations, yields closed-form expressions for conditions of oscillation. The theory predicts that the lung pressure required to sustain oscillation, i.e., the oscillation threshold pressure, is reduced by reducing the mucosal wave velocity, by bringing the vocal folds closer together and by reducing the convergence angle in the glottis. The effect of vocal tract acoustic loading is included. It is shown that vocal tract inertance reduces the oscillation threshold pressure, whereas vocal tract resistance increases it. The treatment, which is applicable to falsetto and breathy voice, as well as onset or release of phonation in the absence of vocal fold collision, is harmonized with former treatments based on two-mass models and collapsible tubes.
Details
- Title: Subtitle
- The physics of small-amplitude oscillation of the vocal folds
- Creators
- Ingo R. Titze - University of Iowa
- Resource Type
- Journal article
- Publication Details
- The Journal of the Acoustical Society of America, Vol.83(4), pp.1536-1552
- DOI
- 10.1121/1.395910
- PMID
- 3372869
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Number of pages
- 17
- Language
- English
- Date published
- 04/01/1988
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719571902771
Metrics
5 Record Views