Finite element modelling of vocal tract changes after voice therapy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F11%3A33116374" target="_blank" >RIV/61989592:15310/11:33116374 - isvavai.cz</a>

Alternative codes found

RIV/61388998:_____/11:00361232 RIV/68407700:21220/11:00186234

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Finite element modelling of vocal tract changes after voice therapy

Original language description

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 by exciting the models with acoustic flow velocity at the vocal folds. Thegenerated acoustic pressure of the response was computed in front of the mouth and inside the vocal tract for both FE models. The formants F1-F3 correspond to classical vibration modes also solvable by 1D vocal tract model. However, for higher formants,there occur more complicated transversal modes which require 3D modelling. The higher formants created a clear formant cluster around 4 kHz after the vocal exercise with the tube. Since the human ear is most sensitive to frequencies between 2 and 4 kHzconcentration of sound energy in this frequency region (F4-F5) is effective for communication. The results suggest that exercising using phonation into tubes help in improving the vocal economy.

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

BI - Acoustics and oscillation

OECD FORD branch

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Project

<a href="/en/project/GA101%2F08%2F1155" target="_blank" >GA101/08/1155: Computer and physical modelling of vibroacoustic properties of human vocal tract for optimization of voice quality</a><br>

Continuities

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

Publication year

2011

Confidentiality

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

Name of the periodical

Applied and Computational Mechanics

ISSN

1802-680X

e-ISSN

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Volume of the periodical

5

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

12

Pages from-to

77-88

UT code for WoS article

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EID of the result in the Scopus database

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