Publication detail

FE modelling of effect of tonsillectomy on production of Czech vowels

ŠVANCARA, P. HORÁČEK, J.

English title

FE modelling of effect of tonsillectomy on production of Czech vowels

Type

Peer-reviewed article not indexed in WoS or Scopus

Language

en

Original abstract

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.

Keywords in English

biomechanic of voice,finite element modeling,acoustics of human vocal tract

Released

2005-01-01

ISSN

1210-2717

Journal

Inženýrská mechanika – Engineering Mechanics

Volume

12

Number

5

Pages from–to

347–354

Pages count

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"
}