Modeling the influence of piriform sinuses and valleculae on the vocal tract resonances and antiresonances

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33153961" target="_blank" >RIV/61989592:15310/15:33153961 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388998:_____/15:00443620 RIV/68407700:21220/15:00230072

Výsledek na webu

<a href="http://dx.doi.org/10.3813/AAA.918855" target="_blank" >http://dx.doi.org/10.3813/AAA.918855</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3813/AAA.918855" target="_blank" >10.3813/AAA.918855</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modeling the influence of piriform sinuses and valleculae on the vocal tract resonances and antiresonances

Popis výsledku v původním jazyce

Piriform sinuses (PS) and valleculae (VA) 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 specific 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 PS and VA 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:], is computationally-effective and allows parametric changes of the size of PS and VA continuously within the physiologic range. As expected, increased sizes of both the PS and VA shift the corresponding antiresonances and resonances to lower frequencies and can alter the resulting voice spectrum. Within the antiresonance-resonance pair the PS resonance frequency was found lower than the antiresonance frequency when the fourth vocal tract resonance frequency was below the PS antiresonance frequency. In this case, expansion of the PS size could contribute to forming a complex singer's/speaker's formant cluster and increase the radiated acoustic power in the 3-5 kHz frequency range. These changes are expected to play a role in voice therapy and operatic singing.

Název v anglickém jazyce

Modeling the influence of piriform sinuses and valleculae on the vocal tract resonances and antiresonances

Popis výsledku anglicky

Piriform sinuses (PS) and valleculae (VA) 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 specific 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 PS and VA 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:], is computationally-effective and allows parametric changes of the size of PS and VA continuously within the physiologic range. As expected, increased sizes of both the PS and VA shift the corresponding antiresonances and resonances to lower frequencies and can alter the resulting voice spectrum. Within the antiresonance-resonance pair the PS resonance frequency was found lower than the antiresonance frequency when the fourth vocal tract resonance frequency was below the PS antiresonance frequency. In this case, expansion of the PS size could contribute to forming a complex singer's/speaker's formant cluster and increase the radiated acoustic power in the 3-5 kHz frequency range. These changes are expected to play a role in voice therapy and operatic singing.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Acta Acustica United with Acustica

ISSN

1610-1928

e-ISSN

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Svazek periodika

101

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

594-602

Kód UT WoS článku

000353869000017

EID výsledku v databázi Scopus

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