Název: Finite element modelling of sound pressure around the human head during phonation
Autoři: Švancara, P. ; Tomeček, V. ; Horáček, Jaromír ; Švec, J. G.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering Mechanics 2013 /19./, Svratka (CZ), 2013-05-13 / 2013-05-16
Rok: 2013
Jazyk: eng
Abstrakt: The study presents finite element (FE) model of sound propagation through the vocal tract and around the human head during speech production. Similar experimental studies are not easily realisable. The FE model of the acoustic spaces corresponding to the human vocal tract for Czech vowel [a:] and acoustic space around the human head was created from computer tomography (CT) images. Modal and transient analyses (excitation by a short pulse) are used for analysis of resonant characteristics of the FE model. The production of vowel is then simulated using transient analysis of the FE models excited by Liljencrants-Fant’s (LF) glottal signal model. Formant frequencies detected from computed spectra are in good agreement with results of modal analysis and with literature. The results of numerical simulation enable evaluating of the transfer functions between a reference point and any point in the space around the head.
Klíčová slova: biomechanics of voice; finite element method; human head model; sound pressure level
Číslo projektu: GAP101/12/1306 (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Engineering Mechanics 2013, ISBN 978-80-87012-47-5, ISSN 1805-8256

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0225364

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-161307


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference