Journal article
Simulation of Multiple Source Vocalization in the Larynx: How True Folds, False Folds, and Aryepiglottic Folds May Interact
Journal of speech, language, and hearing research, Vol.67(3), pp.802-810
03/11/2024
DOI: 10.1044/2023_JSLHR-23-00503
PMCID: PMC11001424
PMID: 38416067
Abstract
Purpose: This study was a modest beginning to determine dominance and entrainment between three soft tissues in the larynx that can be set into flowinduced oscillation and act as sound sources. The hypothesis was that they interact as coupled oscillators with observable bifurcations as energy is exchanged between them. Methodology: The true vocal folds, the ventricular (false) folds, and the aryepiglottic folds were part of a soft-walled airway that produced airflow for sound production. The methodology was computational, based on a simplified Navier- Stokes solution of convective and compressible airflow in a variable-geometry airway. Results: Three serially connected sources could all produce flow-induced selfoscillation with soft wall tissue and small cross-sectional area. When the glottal cross-sectional areas were similar, bifurcations such as subharmonics, delayed voice onset, and aphonia occurred in the coupled oscillations. Conclusions: Closely spaced sound sources in the larynx are highly interactive. They appear to entrain to the source that has the combined advantage of small cross-sectional glottal area and proximity to a downstream vocal tract that supports oscillation with acoustic inertance.
Details
- Title: Subtitle
- Simulation of Multiple Source Vocalization in the Larynx: How True Folds, False Folds, and Aryepiglottic Folds May Interact
- Creators
- Ingo R. Titze - University of Utah
- Resource Type
- Journal article
- Publication Details
- Journal of speech, language, and hearing research, Vol.67(3), pp.802-810
- DOI
- 10.1044/2023_JSLHR-23-00503
- PMID
- 38416067
- PMCID
- PMC11001424
- NLM abbreviation
- J Speech Lang Hear Res
- ISSN
- 1092-4388
- eISSN
- 1558-9102
- Publisher
- Amer Speech-Language-Hearing Assoc
- Number of pages
- 9
- Grant note
- 1R01 DC 017998-05 / National Institute on Deafness and Other Communication Disorders; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Deafness & Other Communication Disorders (NIDCD)
- Language
- English
- Date published
- 03/11/2024
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719749802771
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