000009226 001__ 9226
000009226 005__ 20141204092420.0
000009226 04107 $$aeng
000009226 046__ $$k12/05/2014
000009226 100__ $$aRadolf, V.
000009226 24500 $$aComputer simulation of musical singer’s voice based on MRI and acoustic measurements

000009226 24630 $$n18.$$pEngineering Mechanics 2012
000009226 260__ $$bInstitute of Theoretical and Applied Mechanics, AS CR, Prague
000009226 506__ $$arestricted
000009226 520__ $$2eng$$aAn inverse method was used to estimate the vocal tract geometry as a 1 D 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 magnetic resonance images (MRI) registered during sustained phonation of vowels [a:], [i:], [u:] produced in naive and professional ways (before and after exercising respectively). 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. The area ratio between the low pharynx and the epilarynx increased for [a:] but decreased for [i:] and [u:] after exercising being between 3.33 and 4.39. 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.

000009226 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009226 653__ $$abiomechanics of voice, singer’s and speaker’s formant cluster, acoustic effects of vocal exercises

000009226 7112_ $$aEngineering Mechanics 2012$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2012
000009226 720__ $$aRadolf, V.$$iNissinen, A.$$iLaukkanen, A. M.$$iHavlík, R.$$iHoráček, J.
000009226 8560_ $$ffischerc@itam.cas.cz
000009226 8564_ $$s730303$$uhttps://invenio.itam.cas.cz/record/9226/files/184_Radolf_V-FT.pdf$$yOriginal version of the author's contribution as presented on CD, paper (No. 184).
000009226 962__ $$r8924
000009226 980__ $$aPAPER