Rapid Prototyped Models of a Human Vocal Tract Used for Experimental Acoustic Modal Analysis

Kód výsledku v IS VaVaI

RIV/68407700:21220/05:00111441 - isvavai.cz

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Rapid Prototyped Models of a Human Vocal Tract Used for Experimental Acoustic Modal Analysis

Popis výsledku v původním jazyce

Acoustic properties of a physical model of real male vocal tract corresponding to the Czech vowel / a / are analyzed by the experimental modal analysis. The model was designed by direct transferring the data obtained from the magnetic resonance images (MRI), taken during the subject phonation, into the geometric computer model (CAD model) and afterwards the method of Rapid Prototyping was realized for creating the final physical model. The acoustic excitation was applied at the position of the vocal folds and the response was measured by a miniature microphone in several discrete points along the vocal tract. The measured frequency response functions were evaluated by a global identification method. The resulting eigenfrequencies (formants) and the acoustic mode shapes of vibration are compared with the acoustic measurements carried out during the MRI sequence realization and with the results of the modal analysis of the FE model of the vocal tract for the same vowel / a /.

Název v anglickém jazyce

Rapid Prototyped Models of a Human Vocal Tract Used for Experimental Acoustic Modal Analysis

Popis výsledku anglicky

Acoustic properties of a physical model of real male vocal tract corresponding to the Czech vowel / a / are analyzed by the experimental modal analysis. The model was designed by direct transferring the data obtained from the magnetic resonance images (MRI), taken during the subject phonation, into the geometric computer model (CAD model) and afterwards the method of Rapid Prototyping was realized for creating the final physical model. The acoustic excitation was applied at the position of the vocal folds and the response was measured by a miniature microphone in several discrete points along the vocal tract. The measured frequency response functions were evaluated by a global identification method. The resulting eigenfrequencies (formants) and the acoustic mode shapes of vibration are compared with the acoustic measurements carried out during the MRI sequence realization and with the results of the modal analysis of the FE model of the vocal tract for the same vowel / a /.

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

GA106/04/1025: Modelování vibroakustických systémů se zaměřením na vokální trakt člověka

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název statě ve sborníku

22nd Danubia-Adria Symposium on Experimental Methods in Solid Mechanics

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

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Název nakladatele

University of Parma

Místo vydání

Parma

Místo konání akce

Monticelli Terme / Parma

Datum konání akce

28. 9. 2005

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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