Experimental Modelling of the Influence of Vocal Folds Stiffness on Acoustic Response Spectra of the Human Vocal Tract

The acoustic volume velocity transfer function of a vocal tract characterizes its acoustic resonance properties, which are important for human voice production.In this paper, the computed and measured transfer functions of the vocal tract model are compared.The procedure of measuring the transfer function is then applied to the vocal tract model completely closed by the silicone vocal folds model.The influence of the vocal folds' stiffness on the vocal tract transfer function and also on the acoustic response spectra during simulated phonation was found to be very important -especially in higher frequency regions.