Detail publikace
FE modelling of effect of tonsillectomy on production of Czech vowels
ŠVANCARA, P. HORÁČEK, J.
Anglický název
FE modelling of effect of tonsillectomy on production of Czech vowels
Typ
Článek recenzovaný mimo WoS a Scopus
Jazyk
en
Originální abstrakt
In this study is numerically examined the effect of tonsillectomy on production of Czech vowels /a/ and /i/. Similar experimental studies are not easily realisable on living subjects. Finite element (FE) models of the acoustic spaces corresponding to the human vocal tract for the Czech vowels /a/ and /i/ with acoustic space around the human head are used in numerical simulations of phonation. The acoustic resonant characteristics of the FE models are studied using modal and transient analyses. The production of vowels is simulated in time domain using transient analysis of FE model excited by analytically described Liljencrants-Fants (LF) glottal signal model. Calculated results shows that tonsillectomy causes frequency shifts of some formant frequencies up to 150 Hz. The frequency shift of formants significantly depends on position and size of the tonsils.
Klíčová slova anglicky
biomechanic of voice,finite element modeling,acoustics of human vocal tract
Vydáno
2005-01-01
ISSN
1210-2717
Časopis
Inženýrská mechanika – Engineering Mechanics
Ročník
12
Číslo
5
Strany od–do
347–354
Počet stran
8
BIBTEX
@article{BUT42597,
author="Pavel {Švancara} and Jaromír {Horáček}",
title="FE modelling of effect of tonsillectomy on production of Czech vowels",
journal="Inženýrská mechanika - Engineering Mechanics",
year="2005",
volume="12",
number="5",
pages="347--354",
issn="1210-2717"
}