Computer modeling of effects of vocal exercising with a tube on vocal tract sound power transfer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F10%3A00350559" target="_blank" >RIV/61388998:_____/10:00350559 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/10:10215349

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Computer modeling of effects of vocal exercising with a tube on vocal tract sound power transfer

Popis výsledku v původním jazyce

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 formantregion) being the most effective. The results suggest that exercising on semi-occlusions help in improving the vocal economy.

Název v anglickém jazyce

Computer modeling of effects of vocal exercising with a tube on vocal tract sound power transfer

Popis výsledku anglicky

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 formantregion) being the most effective. The results suggest that exercising on semi-occlusions help in improving the vocal economy.

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F08%2F1155" target="_blank" >GA101/08/1155: Počítačové a fyzikální modelování vibroakustických vlastností vokálního traktu člověka s ohledem na optimalizaci hlasové kvality</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Interaction and Feedbacks 2010 - Proceedings

ISBN

978-80-87012-29-1

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

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Název nakladatele

Institute of Thermomechanics AS CR, v.v.i

Místo vydání

Prague

Místo konání akce

Prague

Datum konání akce

23. 11. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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