Abstract
Estimation of effective mass and stiffness of the vocal folds from distributed models
The Journal of the Acoustical Society of America, Vol.64(S1), pp.S41-S41
11/01/1978
DOI: 10.1121/1.2004198
Abstract
The effective mass and stiffness of the vocal folds are the primary factors in the control of fundamental frequency. Since the soft tissue medium of the folds constitutes a distributed system, the equivalent lumped constants depend heavily upon the viscoelastic properties and the boundary conditions. We show an evolution of continuum models from a semi-infinite medium to the more realistic case where three boundaries are fixed and three boundaries are exposed to airflow. In order to compare lumped-constant parameters to distributed properties, a set of known surface stresses is applied at the exposed surfaces of a continuum model, mode impedances are defined, and the equivalent lumped constants are determined by resonance and asymptotic conditions of impedance curves. We show the dependence of the equivalent mass and stiffness upon the vocal fold length, depth, and thickness, as well as tissue properties such as orthotropy and incompressibility.
Details
- Title: Subtitle
- Estimation of effective mass and stiffness of the vocal folds from distributed models
- Creators
- Ingo R. TitzeDavid T. Talkin
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.64(S1), pp.S41-S41
- Publisher
- AMER INST PHYSICS; WOODBURY
- DOI
- 10.1121/1.2004198
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Language
- English
- Date published
- 11/01/1978
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719737802771
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