Publication detail
Numerical simulation of the self-oscillations of the vocal folds and of the resulting acoustic phenomena in the vocal tract
Švancara, P. Horáček, J. Švec, J. G.
Czech title
Numerická simulace samobuzeného kmitání hlasivek a akustických procesů ve vokálním traktu
English title
Numerical simulation of the self-oscillations of the vocal folds and of the resulting acoustic phenomena in the vocal tract
Type
conference paper
Language
en
Original abstract
The study presents a three-dimensional (3D) finite element (FE) model of the flow-induced self-oscillation of the human vocal folds in interaction with acoustics of simplified vocal tract models. The 3D vocal tract models of the acoustic spaces shaped for simulation of phonation of Czech vowels [a:], [i:] and [u:] were created by converting the data from the magnetic resonance images (MRI). For modelling of the fluid-structure interaction, explicit coupling scheme with separated solvers for fluid and structure domain was utilized. The developed FE model enables to study the relationship between flow-induced vibrations of the vocal folds and acoustic wave propagation in the vocal tract and can also be used to simulate for example pathological changes in the vocal fold tissue and their influence on the voice production.
Czech abstract
Práce se zabývá prostorovým (3D) konečněprvkovým (MKP) modelem proudem vzduchu vyvolaného samobuzeného kmitání lidských hlasivek v kombinaci s akustickými procesy v modelu vokálního traktu. 3D modely vokálních traktů pro české samohlásky [a:], [i:] a [u:] byly vytvořeny na základě dat z magnetické rezonance (MR). Pro modelování interakce mezi strukturou a tekutinou bylo použito explicitní vazebné schéma s oddělenými řešiči pro tekutinu a strukturu. Vytvořené MKP modely umožňují analyzovat vztah mezi kmitáním hlasivek a šířením akustických vln vokálním traktem a mohou být použity pro studium vlivu patologických změn v tkáni hlasivky na výsledný hlas.
English abstract
The study presents a three-dimensional (3D) finite element (FE) model of the flow-induced self-oscillation of the human vocal folds in interaction with acoustics of simplified vocal tract models. The 3D vocal tract models of the acoustic spaces shaped for simulation of phonation of Czech vowels [a:], [i:] and [u:] were created by converting the data from the magnetic resonance images (MRI). For modelling of the fluid-structure interaction, explicit coupling scheme with separated solvers for fluid and structure domain was utilized. The developed FE model enables to study the relationship between flow-induced vibrations of the vocal folds and acoustic wave propagation in the vocal tract and can also be used to simulate for example pathological changes in the vocal fold tissue and their influence on the voice production.
Keywords in Czech
biomechanika hlasu, inteakce struktura-tekutina-akustika, numerická simulace fonace, metoda konečných prvků, videokymografie
Keywords in English
biomechanics of voice, fluid-structure-acoustic interaction, finite element method, simulation of phonation, videokymography
RIV year
2012
Released
04.09.2012
Publisher
Springer
Location
Dordrecht, Netherlands
ISBN
978-94-007-5124-8
ISSN
2211-0984
Book
Advances in Mechanisms Design, Proceedings of TMM 2012
Number
8
Edition number
8
Pages from–to
357–363
Pages count
7
BIBTEX
@inproceedings{BUT93709,
author="Pavel {Švancara} and Jaromír {Horáček} and Jan G. {Švec},
title="Numerical simulation of the self-oscillations of the vocal folds and of the resulting acoustic phenomena in the vocal tract",
booktitle="Advances in Mechanisms Design, Proceedings of TMM 2012",
year="2012",
number="8",
month="September",
pages="357--363",
publisher="Springer",
address="Dordrecht, Netherlands",
isbn="978-94-007-5124-8",
issn="2211-0984"
}