Original title: Finite element modelling of sound pressure around the human head during phonation
Authors: Švancara, P. ; Tomeček, V. ; Horáček, Jaromír ; Švec, J. G.
Document type: Papers
Conference/Event: Engineering Mechanics 2013 /19./, Svratka (CZ), 2013-05-13 / 2013-05-16
Year: 2013
Language: eng
Abstract: 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.
Keywords: biomechanics of voice; finite element method; human head model; sound pressure level
Project no.: GAP101/12/1306 (CEP)
Funding provider: GA ČR
Host item entry: Engineering Mechanics 2013, ISBN 978-80-87012-47-5, ISSN 1805-8256

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0225364

Permalink: http://www.nusl.cz/ntk/nusl-161307


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Research > Institutes ASCR > Institute of Thermomechanics
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