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

Result code in 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>

Alternative codes found

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

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BO - Biophysics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

Acta Acustica United with Acustica

ISSN

1610-1928

e-ISSN

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Volume of the periodical

101

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

594-602

UT code for WoS article

000353869000017

EID of the result in the Scopus database

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