Comparison of computed and measured pressure and acoustic characteristics for normal and extreme phonation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F12%3A00383349" target="_blank" >RIV/61388998:_____/12:00383349 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of computed and measured pressure and acoustic characteristics for normal and extreme phonation

Popis výsledku v původním jazyce

The purpose of the paper was to compare our current mathematical models to the results of experimental measurements. These measurements were done to obtain real physiological data for extreme ways of human phonation when the acoustic impedance of vocal tract (VT) was increased by prolonging VT with different tubes or straws. These ways of phonations are used for applications in voice training and therapy purposes. One of the main questions was about the lowest formant frequency of an acoustic system consisted of VT prolonged at the lips by a tube. For that reason a new test set was prepared, that enabled to measure transfer function of the system VT+tube without an influence of vibrating vocal folds. The measured formant frequencies F1-F7 excellently agreed with the computed formants. The first formant frequency about 80 Hz was much lower than F1 resulting from the yielding wall models.

Název v anglickém jazyce

Comparison of computed and measured pressure and acoustic characteristics for normal and extreme phonation

Popis výsledku anglicky

The purpose of the paper was to compare our current mathematical models to the results of experimental measurements. These measurements were done to obtain real physiological data for extreme ways of human phonation when the acoustic impedance of vocal tract (VT) was increased by prolonging VT with different tubes or straws. These ways of phonations are used for applications in voice training and therapy purposes. One of the main questions was about the lowest formant frequency of an acoustic system consisted of VT prolonged at the lips by a tube. For that reason a new test set was prepared, that enabled to measure transfer function of the system VT+tube without an influence of vibrating vocal folds. The measured formant frequencies F1-F7 excellently agreed with the computed formants. The first formant frequency about 80 Hz was much lower than F1 resulting from the yielding wall models.

Druh

O - Ostatní výsledky

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GPP101%2F12%2FP579" target="_blank" >GPP101/12/P579: Akustické rezonanční vlastnosti vokálních dutin - přímá a iverzní úloha</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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