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Geometry of human vocal folds and glottal channel for mathematical and biomechanical modeling of voice production
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SYSNO ASEP 0306366 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Geometry of human vocal folds and glottal channel for mathematical and biomechanical modeling of voice production Title Geometrie lidských hlasivek a mehihlasivkové štěrbiny pro matematické a biomechanické modelování produkce hlasu Author(s) Šidlof, Petr (UT-L) RID
Švec, J. G. (CZ)
Horáček, Jaromír (UT-L) RID, ORCID
Veselý, Jan (UT-L)
Klepáček, I. (CZ)
Havlík, R. (CZ)Source Title Journal of Biomechanics. - : Elsevier - ISSN 0021-9290
Roč. 41, - (2008), s. 985-995Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords vocal fold geometry ; glottal channel shape ; quantitative description Subject RIV BI - Acoustics R&D Projects IAA2076401 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation Current models of the vocal folds derive their shape from approximate information rather than from exactly measured data. The objective of this study was to obtain detailed measurements on the geometry of human vocal folds and the glottal channel in phonatory position. a non-destructive casting methodology was developed to capture the vocal fold shape from excised human larynges on both medial and superior surfaces. Two female larynges, each in two different phonatory configurations corresponding to low and high fundamental frequency of the vocal fold vibrations, were measured. A coordinate measuring machine was used to digitize the casts yielding 3D computer models of the vocal fold shape. The coronal sections were located in the models, extracted and fitted by piecewisedefined cubic functions allowing a mathematical expression of the 2D shape of the glottal channel. Left-right differences between the cross-sectional shapes of the vocal folds were found in both the larynges. 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 2008
Number of the records: 1