Non linear behavior of vocal fold vibration in an experimental model of asymmetric larynx: role of coupling between the two folds
Ouaknine, M.; Giovanni, A.; Guelfucci, B.; Teston, B.; Triglia, J.M.
Revue de Laryngologie - Otologie - Rhinologie 119(4): 249-252
1998
ISSN/ISBN: 0035-1334 PMID: 9865101 Document Number: 491912
One of the main factors involved in the laryngeal dynamic's non-linearity is the coupling between the two vocal folds. Evaluation of the different coupling elements requires various investigations. The present work evaluate the non-linearity effects in clinical situations such as unilateral laryngeal paralysis using Lyapunov's coefficients. It also demonstrate the coupling effects on excised larynx made experimentally asymmetrical, using a specially designed device to measure vibrations from each vocal fold (opto-reflectometer).