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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Computational and Experimental analysis of Effect of Tonillectomy on Production of Czech Vowels
 Švancara, P. ; Vokřál, J. ; Horáček, Jaromír
The effect of tonsillectomy on production of Czech vowels is numerically and experimentally examined. Experimental results show statistically significant shift down to lower frequencies of 3rd formant frequency for vowels /a/, /e/ and /o/. The finite element (FE) models of the acoustic spaces corresponding to the human vocal tracts and acoustic space around the human head are used in numerical simulations of phonation. Computed results show that tonsillectomy causes frequency shifts of some formant frequencies mostly down to lower frequencies. The frequency shifts of the formants are significantly dependent on position and size of th tonsils. Experimental and computational results are consistent.
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