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	Dynamic properties of some physical models of artificial vocal folds Šidlof, Petr ; Veselý, Jan ; Horáček, Jaromír The paper presents results of measurements of acoustic and vibratory characteristics of several artificial vocal fold prototypes based on various principles. During measurements the dynamic subglottal pressure and output acoustic pressure were recorded. Spectral analysis of the signals was performed, and where the construction permitted, the vibrations were also observed by means of videostroboscopy. In some cases, a computer-modelling-based shape and material optimizations is possible with the aid of the mathematical models developed in IT AS CR. Detailed record
	Fyziologické údaje získané z aeroelastického modelu kmitání lidských hlasivek Horáček, Jaromír ; Laukkanen, A. M. ; Šidlof, Petr The results of the numerical simulations show that the aeroelastic model for vocal fold self-oscillations corresponds well with the existing clinical data and it thus gives the possibility to study independently various phonation related variables that may in living subjects be obscured by the co-existence of many variables. Furthermore, the model of course naturally gives the possibility to study also such variables that are impossible to study in living subjects. Detailed record
	Počítačová simulace lidského hlasu s využitím aeroelastického modelu hlasivek a MKP modelu vokálního traktu člověka Horáček, Jaromír ; Šidlof, Petr ; Švec, J. G. ; Griffond-Boitier, F. The developed finite element (FE) model of real male vocal tract that corresponds to the Czech vowel /a/ is used for numerical simulation of phonation. The FE model was designed from the magnetic resonance images (MRI) of the subject during phonation. The acoustic signals for the vowel /a/ are simulated using the transient analysis of the FE model in time domain. For excitation of the acoustic supraglottal spaces the intraglottal pressure generated by the aeroelastic model of vocal folds self-oscillations is used. The frequency and time response functions are calculated in front of the mouth. Detailed record

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