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Updated: Aug 7, 2026

Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions
Published on: November 25, 2017
Optoreflectometry determination of the resonance properties of a vocal fold
Renaud Garrel1, Richard Nicollas, Antoine Giovanni
1Clinical and Experimental Audiology and Phonology Laboratory, UPRES-EA 2668, Marseille, France. r-garrel@chu-montpellier.fr
Abstract:
A new method of measuring the resonance properties of a vocal fold using electromagnetic excitation and laser optoreflectometry for response monitoring is described. Two resonance peaks were experimentally identified with one magnet stuck on the vocal fold at frequencies F0(1m)=54.7 Hz and F0'(1m)=35.8 Hz. The addition of a second magnet allowed calculation of the actual viscoelastic properties of the vocal fold: F0=71.8 Hz; quality factor Q=8.03; mass m=0.057 g; stiffness k=11.6 Nm; and damping zeta=0.0032 Nm(-1). A numerical simulation of a two-layered model verified the experimental data.
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