Home > Search Results: Lejska, M
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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Pěvecký formant: Předběžné výsledky vyhodnocení snímků z magnetické rezonance a akustických záznamů při fonaci zpěváků
 Švec, J. ; Herbst, C. ; Havlík, R. ; Horáček, Jaromír ; Krupa, P. ; Lejska, M. ; Miller, D.G.
Singerś formant is a desirable quality in operatic singing. This study investigates the strategies of two male operatic singers used for achieving the singerś formant. The subjects were asked to produce voice both in naïve and operatic singing quality at the same fundamental frequency for two different vowels [a] and [e]. Changes in the shape of the vocal tract were investigated using magnetic resonance imaging (MRI), and differences in acoustic voice quality were analyzed using sound spectrography. In operatic voice quality the MR images revealed a) lowered larynx, b) raised soft palate, c) flattened tongue and d)straightened spine. Clustering and lowering the formant frequencies was seen in the spectrograms but the strategy was different for the two vowels and the two singers. The data suggest that different anatomical dispositions in singers lead to different strategies for optimizing the voice quality.
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MKP model akustických prostor a analýza lidského vokálního traktu pro normální a zpěvný hlas-předběžná studie
 Vampola, T. ; Horáček, Jaromír ; Krupa, P. ; Švec, J. G. ; Havlík, R. ; Lejska, M.
The contribution deals with the design of the FE models of the human vocal tract for phonation of the vowel /a:/ without and with the singerś formant. Significant changes in the dimensions of the acoustic spaces of the vocal tract and in the basic acoustic frequency-modal characteristics of the models due to the existence of the singerś formant are presented. The models were developed from the MRI measurements of the singer during phonation with and without the singerś formant.
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