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Vocal tract changes caused by phonation into a tube: A case study using computer tomography and finite-element modeling
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SYSNO ASEP 0353296 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Vocal tract changes caused by phonation into a tube: A case study using computer tomography and finite-element modeling Author(s) Vampola, T. (CZ)
Laukkanen, A. M. (FI)
Horáček, Jaromír (UT-L) RID, ORCID
Švec, J. G. (CZ)Source Title Journal of the Acoustical Society of America. - : Acoustical Society of America - ISSN 0001-4966
Roč. 129, č. 1 (2011), s. 310-315Number of pages 6 s. Language eng - English Country US - United States Keywords voice production ; computer tomography ; vocal tract Subject RIV BI - Acoustics R&D Projects GA101/08/1155 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000286944600038 DOI 10.1121/1.3506347 Annotation Phonation into a glass tube is a voice training and therapy method that leads to beneficial effect in voice production. This pilot study examined the vocal tract shape in a female subject before, during, and after phonation into a tube using computer tomography (CT). 3D finite-element models (FEMs) of the vocal tract were derived from CT images and used to study pharyngeal closure and enlarged cross-sectional areas of the oropharyngeal and oral cavities during and after the tube-phonation. FEM calculations revealed an increased input inertance of the vocal tract and an increased acoustic energy radiated out of the vocal tract after the tube-phonation. The results indicate that the phonation into a tube causes changes in the vocal tract which remain also when the tube is removed. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2011
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