Validation of theoretical models of phonation threshold pressure with data from a vocal fold mechanical replica (L)
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This paper analyzes the capability of a mucosal wave model of the vocal fold to predict values of phonation threshold lung pressure. Equations derived from the model are fitted to pressure data collected from a mechanical replica of the vocal folds. The results show that a recent extension of the model to include an arbitrary delay of the mucosal wave in its travel along the glottal channel provides a better approximation to the data than the original version of the model, which assumed a small delay. They also show that modeling the vocal tract as a simple inertive load, as has been proposed in recent analytical studies of phonation, fails to capture the effect of the vocal tract on the phonation threshold pressure with reasonable accuracy. © 2009 Acoustical Society of America.
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Theoretical simulation and experimental validation of inverse quasi-one-dimensional steady and unsteady glottal flow modelsCisonni, Julien; Van Hirtum, A.; Pelorson, X.; Willems, J. (2008)In physical modeling of phonation, the pressure drop along the glottal constriction is classically assessed with the glottal geometry and the subglottal pressure as known input parameters. Application of physical modeling ...
Cisonni, Julien; Van Hirtum, A.; Pelorson, X.; Lucero, J. (2011)The influence of initial aperture and mechanical properties on the onset pressure thresholds and oscillation frequencies is experimentally assessed on a deformable vocal fold replica in case of strong and weak acoustical ...
Cisonni, Julien; Van Hirtum, A.; Luo, X.; Pelorson, X. (2010)Physical modelling of phonation requires a mechanical description of the vocal fold coupled to a description of the flow within the glottis. In this study, an in-vitro set-up, allowing to reproduce flow conditions comparable ...