Original title: Measurement of acoustic input impedance of the human vocal tract models
Authors: Radolf, Vojtěch ; Dlask, P. ; Otčenášek, Z.
Document type: Papers
Conference/Event: Interaction and Feedbacks 2013 /20./, Prague (CZ), 2013-11-26 / 2013-11-27
Year: 2013
Language: eng
Abstract: Input acoustic impedance of the human vocal tract models made of plexiglass was measured using the measurement system BIAS 6. Three models A, I, U for vowels /a:/, /i:/ and /u:/ had simplified rectangular shape of the channel with constant height 20 mm. The fourth model A2D had elliptical channel shape. Resulted resonance frequencies were within the known ranges of formant frequencies of the vowels. The resonances of default configurations varied for different boundary positions in relation to measuring microphone in the range of 0.5 %, 3.9 %, 2.1%, 6.7 % for the models A2D, A, I and U, respectively. The resonances of direct and reversed models with the output closed differed in the range of 0.5 % and 1.8 % for A2D and A model, respectively. The measured and computed resonances differed in the range from 3.8 % for A2D to 14.6 % for the model I.
Keywords: acoustic impedance; biomechanics of voice; human vocal tract
Project no.: GPP101/12/P579 (CEP)
Funding provider: GA ČR
Host item entry: Interaction and Feedbacks 2013, ISBN 978-80-87012-49-9

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/11104/0228684

Permalink: http://www.nusl.cz/ntk/nusl-170047


The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers