Investigating phonation through excised human larynges: recent developments and ongoing works on an animated testbench
Résumé
Many aspects of voice production can be investigated by means of in vivo observations and experiments on synthetic vocal folds replica. However, either mammals or human excised larynges provide an interesting trade-off between realistic physiological conditions, reproducibility and observability, paving the way to the development in the last years of experimental setups involving excised human larynges. Some of them focus on the control of the laryngeal articulation, in order to enable the simulation of coordinated muscular activations. We here present the last developments of the excised human larynx test bench hosted at the Medecine Faculty in Marseille, with the motorized animation of some of the intrinsic laryngeal muscles. As an evidence of the possibilities of such experimental devices, we present a quantitative analysis of the contact pressure between vocal folds in presence of a Reinke's edema.
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