# The minimum lung pressure to sustain vocal fold oscillation.

@article{Lucero1995TheML, title={The minimum lung pressure to sustain vocal fold oscillation.}, author={Jorge C. Lucero}, journal={The Journal of the Acoustical Society of America}, year={1995}, volume={98 2 Pt 1}, pages={ 779-84 } }

In previous experimental studies it has been observed that the minimum lung pressure to sustain vocal fold oscillation after its onset is lower than the threshold pressure needed to initiate it. This phenomenon is studied analytically using a previous body-cover model of the vocal folds and applying the describing function method to the general case of large amplitude oscillations. It is shown that the phenomenon is a consequence of the nonlinear characteristic of the effective aerodynamic…

## 35 Citations

The minimum glottal airflow to initiate vocal fold oscillation.

- PhysicsThe Journal of the Acoustical Society of America
- 2007

The study has theoretically shown that PTF is a sensitive aerodynamic parameter dependent on tissue properties, glottal configuration, and vocal tract loading and the potential significance of PTF in investigating the energy distribution in a vocal fold vibration system and related clinical applications is discussed.

A lumped mucosal wave model of the vocal folds revisited: recent extensions and oscillation hysteresis.

- PhysicsThe Journal of the Acoustical Society of America
- 2011

An updated version of a lumped mucosal wave model of the vocal fold oscillation during phonation is examined, finding that an oscillation hysteresis phenomenon may occur, with different values for the oscillation onset and offset threshold.

A theoretical study of the hysteresis phenomenon at vocal fold oscillation onset-offset.

- PhysicsThe Journal of the Acoustical Society of America
- 1999

The dynamics of the oscillation is analyzed from the perspective of the theory of nonlinear dynamical systems, using a mucosal wave model of the vocal folds with the subglottal pressure and the vocal fold half-width as control parameters.

Aerodynamic transfer of energy to the vocal folds.

- Engineering, PhysicsThe Journal of the Acoustical Society of America
- 2005

The results support the hypothesis that a cyclic variation of the orifice profile from a convergent to a divergent shape leads to a temporal asymmetry in the average wall pressure, which is the key factor for the achievement of self-sustained vocal fold oscillations.

Effects of mucosal loading on vocal fold vibration.

- Engineering, BiologyChaos
- 2009

It was found that phonation instability pressure increases with the coupling constant R(mu) but decreases with the stiffness Constant R(k) of mucosal loading, and it was concluded that mucosalloading directly affects voice production.

Aerodynamics of the Human Larynx During Vocal Fold Vibration

- MedicineThe Laryngoscope
- 2005

This study comprehensively analyzed the influence of aerodynamics on laryngeal function and determination of the threshold subglottic pressure for vocal fold vibration and its dependence on other aerodynamic factors was determined.

Direct measurement of onset and offset phonation threshold pressure in normal subjects.

- MedicineThe Journal of the Acoustical Society of America
- 2004

Univariate analysis showed that phonation threshold pressure was influenced most strongly by fundamental frequency and intensity, and multiple linear regression showed that these two variables, as well as laryngeal airway resistance, most strongly predicted phonation thresholds pressure.

Influence of glottal cross-section shape on phonation onset.

- PhysicsThe Journal of the Acoustical Society of America
- 2014

The glottal cross-section shape is taken into account in the flow model in order to capture its influence on vocal folds oscillation to assess kinetic and viscous flow losses.

Modeling the role of nonhuman vocal membranes in phonation.

- Physics, BiologyThe Journal of the Acoustical Society of America
- 1999

The vocal membrane was modeled as an additional geometrical element in a two-mass model of the larynx and it was found that vocal membranes of an optimal angle and length can substantially lower the subglottal pressure at which phonation is supported, thus increasing vocal efficiency.

NONLINEAR DYNAMICS OF THE VOCAL FOLD OSCILLATION

- 2005

The nonlinear dynamics of the vocal fold oscillation at phonation is studied on Iow dimensional mathematical models. First, a bifurcation diagram is derived for the two-mass model. Two equilibrium…

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