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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 ASEP0306366
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JOstatní články
    TitleGeometry of human vocal folds and glottal channel for mathematical and biomechanical modeling of voice production
    TitleGeometrie 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 TitleJournal of Biomechanics. - : Elsevier - ISSN 0021-9290
    Roč. 41, - (2008), s. 985-995
    Number of pages11 s.
    Languageeng - English
    CountryGB - United Kingdom
    Keywordsvocal fold geometry ; glottal channel shape ; quantitative description
    Subject RIVBI - Acoustics
    R&D ProjectsIAA2076401 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
    CEZAV0Z20760514 - UT-L (2005-2011)
    AnnotationCurrent 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.
    WorkplaceInstitute of Thermomechanics
    ContactMarie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823
    Year of Publishing2008
Number of the records: 1  

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