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Related Experiment Videos

Automated setup for ex vivo larynx experiments.

Veronika Birk1, Michael Döllinger1, Alexander Sutor2

  • 1Medical School, Division of Phoniatrics and Pediatric Audiology at the Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Erlangen, Raumerstrasse 1a, 91054 Erlangen, Germany.

The Journal of the Acoustical Society of America
|April 5, 2017
PubMed
Summary

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This summary is machine-generated.

Automating ex vivo larynx experiments with a computer-controlled setup enhances data acquisition. This system standardizes vocal fold parameter variation, improving efficiency and reducing manual effort for physiological research.

Area of Science:

  • Laryngeal physiology
  • Biomechanics
  • Experimental acoustics

Background:

  • Ex vivo larynx experiments are time-limited due to tissue degeneration.
  • Manual procedures hinder data acquisition and comparability.

Purpose of the Study:

  • To develop an automated, computer-controlled setup for ex vivo larynx experiments.
  • To standardize and improve the efficiency of physiological parameter variation and measurement.

Main Methods:

  • A computer-controlled, electro-mechanical setup was designed to vary vocal fold adduction, elongation, and glottal flow.
  • Automated phonation onset detection and measurement procedures were implemented.
  • The setup was validated using four ex vivo porcine larynges.

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Main Results:

  • Vocal fold elongation and adduction increased fundamental frequency and subglottal pressure.
  • Automated procedures for pressure steps and onset-offset detection were reliably executed.
  • The setup enabled rapid, computer-controlled parameter variation across diverse laryngeal configurations.

Conclusions:

  • The developed setup standardizes ex vivo larynx experimentation, enabling efficient data collection.
  • Computer-based control maximizes measurements and minimizes manual effort.
  • This system facilitates comprehensive studies of laryngeal biomechanics and acoustics.