Publication detail

Finite element modelling of sound pressure around the human head during phonation

ŠVANCARA, P. TOMECEK, V. HORÁCEK, J. ŠVEC, J.

Original Title

Finite element modelling of sound pressure around the human head during phonation

Type

conference paper

Language

English

Original 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-Fants (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 near the lips and any point in the space around the head.

Keywords

biomechanics of voice, finite element method, sound pressure level, human head model

Authors

ŠVANCARA, P.; TOMECEK, V.; HORÁCEK, J.; ŠVEC, J.

RIV year

2013

Released

13. 5. 2013

Publisher

Ústav termomechaniky, AV ČR v.v.i.

Location

Svratka

ISBN

978-80-87012-46-8

Book

Engineering mechanics 2013

Pages from

157

Pages to

158

Pages count

2

BibTex

@inproceedings{BUT106109,
  author="Pavel {Švancara} and Vojtěch {Tomeček} and Jaromír {Horáček} and Jan G. {Švec}",
  title="Finite element modelling of sound pressure around the human head during phonation",
  booktitle="Engineering mechanics 2013",
  year="2013",
  pages="157--158",
  publisher="Ústav termomechaniky, AV ČR v.v.i.",
  address="Svratka",
  isbn="978-80-87012-46-8"
}