LARYNX 1997 Marseille, France June 16-18, 1997

Quantitative Laryngoscopy Combining High Speed Glottography and Nonlinear Dynamics

P. Mergell (1), H. Herzel (2), T. Wittenberg (1), M. Tigges (1), Ulrich Eysholdt (1)

(1) Department of Phoniatrics & Pedaudiology, ENT Clinics, Friedrich Alexander University, Erlangen, Germany
(2) Institute for Theoretical Biology, Humboldt University Berlin, Berlin, Germany

Digital high speed glottography has been combined with nonlinear dynamics to extract essential parameters and features of complex phonatory mechanisms. We present three examples of quantitative laryngoscopy: the phonation onset and two cases of biphonation, one caused by a unilateral recurrent nerve paralysis and another induced by the strong interaction between the first vocal tract resonance and the vocal fold oscillations.

Full Paper

Bibliographic reference.  Mergell, P. / Herzel, H. / Wittenberg, T. / Tigges, M. / Eysholdt, Ulrich (1997): "Quantitative laryngoscopy combining high speed glottography and nonlinear dynamics", In LARYNX-1997, 47-50.