منابع مشابه
A model of glottal flow incorporating viscous-inviscid interaction
A model of flow passing through the glottis is presented by employing the boundary-layer assumption. A thin boundary layer near the glottal wall influences the flow behavior in terms of the flow separation, jet formation, and pressure distribution along the channel. The integral momentum relation has been developed to analyze the boundary layer accurately, and it can be solved numerically for t...
متن کاملSteady Flow Through Modeled Glottal Constriction
The airflow in the modeled glottal constriction was simulated by the solutions of the Navier-Stokes equations for laminar flow, and the corresponding Reynolds equations for turbulent flow in generalized, nonorthogonal coordinates using a numerical method. A two-dimensional model of laryngeal flow is considered and aerodynamic properties are calculated for both laminar and turbulent steady flows...
متن کاملFitting Mass-Spring Models to Glottal Flow Estimates
We present a straightforward method for estimating the parameters of a physical mass-spring model of the vocal folds using a glottal flow signal. Initial experiments show that the method can successfully be used to model the glottal flow waveform. Parameters obtained can be used to characterise the underlying physical system in, for example, when used as features for speech recognition applicat...
متن کاملExperimental validation of direct and inverse glottal flow models for unsteady flow conditions
The pressure drop along the glottal constriction drives vocal folds self-sustained oscillations during phonation. Physical modeling of phonation is classically assessed with the glottal geometry and the subglottal pressure as known input parameters. Several studies including in-vitro validation show that simplified one-dimensional flow models allow predictions of the flow characteristics to a f...
متن کاملNumerical simulations of glottal flow
Features of glottal flow are visualized by numerical simulation, using a Navier-Stokes solver for two-dimensional, incompressible flow. Four different shapes of glottal passages are examined, for comparison to stationary model measurements. Results include pressure distributions leading to the forces acting on the vocal folds and illustrate entry pressure loss and exit recovery. Flow field imag...
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ژورنال
عنوان ژورنال: Journal of Phonetics
سال: 1986
ISSN: 0095-4470
DOI: 10.1016/s0095-4470(19)30714-4