Work

A computational study of the effect of vocal-fold asymmetry on phonation

Year: 2010

Type: article

Abstract: Unilateral laryngeal paralysis leads to tension imbalance and hence to asynchronous movements between the two vocal folds during phonation. In the current study, a computational model of phonation that couples a two-mass model of the vocal folds with a Navier-Stokes model of the glottal airflow, has been used to examine the dynamics of vocal fold configurations with tension imbalance and its implications for phonation. The simulations show that tension imbalance influences phonation onset, intensity as well as the fundamental phonation frequency. Distinct non-linear effects such as period-doubling bifurcation and preferential frequency selection are also observed.

Source: The Journal of the Acoustical Society of America

DOI: 10.1121/1.3458839

Authors: Q. Xue, R. Mittal, X. Zheng, S. Bielamowicz

Institutions: Johns Hopkins University, George Washington University

Language: English

Topic: Voice and Speech Disorders

Subfield: Physiology

Field: Medicine

Domain: Health Sciences

Open Access status: bronze

Funders: National Science Foundation, National Institutes of Health, U.S. Public Health Service, National Institute on Deafness and Other Communication Disorders

Awards: G1140102197, G3859062789, G641604104