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Computer simulation of musical singer’s voice based on MRI and acoustic measurement
 Radolf, Vojtěch ; Nissinen, A. ; Laukkanen, A. M. ; Havlík, R. ; Horáček, Jaromír
An inverse method was used to estimate the vocal tract geometry as a 1D model on the basis of acoustical characteristics of a professional musical singer before and after vocal exercising. The basic geometrical data for the model were obtained from MRI registered during sustained phonation of vowels [a:], [i:], [u:] produced in naive and professional ways. The model was used for numerical simulations of the voice signals. The results of simulation were compared to the acoustic recordings. According to the results, a singer’s formant cluster was accomplished after exercising. It seemed to be due to lowering of the larynx and lengthening and narrowing of the epilarynx. There was a qualitative agreement between 3D measurements of MRI and the results of modeling. The results suggest that for a singer’s formant cluster a relatively low pharynx over epilarynx ratio may be sufficient, at least if the larynx lowers.
Úplný záznam
Numerical simulation of acoustic characteristics of professional voice based on MRI and acoustic measurements
 Radolf, Vojtěch ; Laukkanen, A. M. ; Havlík, R. ; Horáček, Jaromír
Inverse method was used for numerical simulation of acoustic characteristics of a professional musical actor before and after vocal exercises. The geometrical data for a 1D model of the acoustic cavities of the vocal tract were evaluated from magnetic resonance images (MRI) registered during sustained phonation of vowel [a:] before and after a vocal warm-up. The numerically simulated voice signals are compared with the acoustic recordings and warm-up related changes in the vocal tract are discussed.
Úplný záznam

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