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Related Experiment Videos

[Non-linear model of glottic vibration. Potential clinical implications].

A Giovanni1, M Ouaknine, R Garrel

  • 1Laboratoire d'Audio-Phonologie Clinique de l'Université de la Méditerranée, UPRES-EA 2668, Faculté de Médecine de Marseille. agiovann@ap-hm.fr

Revue De Laryngologie - Otologie - Rhinologie
|May 14, 2003
PubMed
Summary

This study explores the physics of vocal fold vibration, revealing non-linear dynamics crucial for voice production. A new Slip-Stick model captures these complex vocal fold behaviors for better understanding of phonation.

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Area of Science:

  • Physics of biological systems
  • Acoustic phonetics
  • Myo-elastic aerodynamic voice production theory

Context:

  • Vocal fold vibration is fundamental to voice production.
  • Existing models often simplify the complex physics involved.
  • Understanding non-linear dynamics is key to explaining voice phenomena.

Purpose:

  • To investigate the physical laws governing glottic vibration.
  • To explore the role of non-linearity in vocal fold dynamics.
  • To propose a novel model for vocal fold vibration.

Summary:

  • Glottic vibration follows physical laws, including non-linear ones related to energy exchange between expired air and vocal folds.
  • These non-linearities are critical for understanding the phonatory threshold and vocal cord synchronization.

Related Experiment Videos

  • A mixed linear and non-linear model, termed Slip-Stick, is proposed based on experimental data, similar to Van der Pol oscillators.

    • Impact:

    • Provides a more accurate physical model for voice production.
    • Enhances understanding of voice disorders related to vocal fold dynamics.
    • Offers new insights into the fundamental mechanisms of phonation.