Počet záznamů: 1
Computer modeling of effects of vocal exercising with a tube on vocal tract sound power transfer
- 1.
SYSNO ASEP 0350559 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Computer modeling of effects of vocal exercising with a tube on vocal tract sound power transfer Tvůrce(i) Horáček, Jaromír (UT-L) RID, ORCID
Vampola, T. (CZ)
Laukkanen, A. M. (FI)
Švec, J. G. (CZ)Zdroj.dok. Interaction and Feedbacks 2010 - Proceedings. - Prague : Institute of Thermomechanics AS CR, v.v.i, 2010 / Zolotarev I. - ISBN 978-80-87012-29-1 Rozsah stran s. 29-38 Poč.str. 10 s. Akce Interaction and Feedbacks 2010 /17./ Datum konání 23.11.2010-24.11.2010 Místo konání Prague Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova FEM ; biomechanics of voice ; acoustic Vědní obor RIV BI - Akustika a kmity CEP GA101/08/1155 GA ČR - Grantová agentura ČR CEZ AV0Z20760514 - UT-L (2005-2011) Anotace Two 3D finite element (FE) models were constructed, based on CT measurements of a subject phonating on [a:] before and after phonation into a tube. Acoustic analysis was performed exciting the models by acoustic flow velocity at the vocal folds. The generated acoustic pressure of the response was computed in front of the mouth and inside the vocal tract for both FE models. Average amplitudes of the pressure oscillations inside the vocal tract and in front of the mouth were compared to display a cost-efficiency of sound energy transfer at different formant frequencies. Comparison of the pressure oscillation inside and outside the vocal tract showed that formants differ in their efficiency, F4 (at about 3.5 kHz, i.e. at the speaker’s or singer’s formant region) being the most effective. The results suggest that exercising on semi-occlusions help in improving the vocal economy. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2011
Počet záznamů: 1