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Vocal fold physiology.

J Jiang1, E Lin, D G Hanson

  • 1Laryngeal Physiology Laboratory, Department of Otolaryngology-Head and Neck Surgery, Northwestern University Medical School, Chicago, Illinois 60611-3008, USA. jjiang@northwestern.edu

Otolaryngologic Clinics of North America
|August 5, 2000
PubMed
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This study explores human phonation, detailing vocal fold vibration theories and the physiological factors like mass, tension, pressure, and airflow that control pitch and intensity. It also touches on disordered voice production.

Area of Science:

  • Physiology
  • Acoustic Science
  • Speech Science

Background:

  • Phonation, the production of voice, is a complex physiological process.
  • Understanding vocal fold vibration is crucial for explaining voice production.
  • Existing theories include myoelastic-aerodynamic, body-cover, and mucosal wave models.

Purpose of the Study:

  • To examine the physiological factors governing human phonation.
  • To explain the control mechanisms and theories of vocal fold vibration.
  • To relate vocal fold properties to pitch, intensity, and voice quality variations.

Main Methods:

  • Review of established physiological concepts of phonation.
  • Explanation of the myoelastic-aerodynamic, body-cover, and mucosal wave theories.

Related Experiment Videos

  • Analysis of factors influencing vocal fold dynamics for pitch and intensity control.

    • Main Results:

    • Vocal fold mass, tension, subglottic pressure, and airflow are key regulators of pitch and intensity.
    • The body-cover theory provides insights into pitch control mechanisms.
    • Physiological parameters directly impact voice qualities and register effects.

    Conclusions:

    • Human phonation is governed by intricate physiological interactions.
    • Variations in vocal fold parameters explain changes in voice pitch, intensity, and quality.
    • Disordered voice production may involve physiological dysfunction and chaotic dynamics.