000021469 001__ 21469
000021469 005__ 20170522124356.0
000021469 04107 $$aeng
000021469 046__ $$k2017-05-15
000021469 100__ $$aVampola, T.
000021469 24500 $$aINFLUENCE OF THE NASAL CAVITIES TO HUMAN VOICE QUALITY

000021469 24630 $$n23.$$pEngineering Mechanics 2017
000021469 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021469 506__ $$arestricted
000021469 520__ $$2eng$$aNasal cavities (NC) form the side branches of the human vocal tract and exhibit antiresonance and resonance properties which influence the produced voice quality. This study investigates the possibility of these resonances to contribute to the speaker's or singer's formant cluster around 3 – 5 kHz. A reduced finite element (FE) model was created which allows numerical simulation of the effects of changing the volumes of NC on the acoustic resonance and antiresonance characteristics of the vocal tract. This model, created from an accurate three-dimensional (3D) FE model of the human vocal tract for vowel [a:] and [i:] is computationally-effective and allows parametric changes of the volume connecting the nasal tract with the human vocal tract. Developed FE models of acoustic spaces of nasal and vocal tract for vowels /a:/ and /i:/ are used to study the influence of (NC) on phonation of these vowels. Acoustics frequency-modal characteristics are studied by modal analysis and numerical simulation of acoustic signals in time domain is performed by transient analysis of the FE models.

000021469 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021469 653__ $$aHuman vocal tract, Nasal cavities, Human voice quality, Self-exciting vibration, Bioacoustic, FE parametric model, Velopharyngeal insufficiency.

000021469 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021469 720__ $$aVampola, T.$$iHoráček, J.
000021469 8560_ $$ffischerc@itam.cas.cz
000021469 8564_ $$s1668015$$uhttps://invenio.itam.cas.cz/record/21469/files/1018.pdf$$yOriginal version of the author's contribution in proceedings, page 1018, section BIO.
000021469 962__ $$r21225
000021469 980__ $$aPAPER