TY - GEN
T1 - EFFECTS OF CONTROLLING CHAOTIC VOCAL FOLD VIBRATIONS ON FINITE ELEMENT GENERATED VOWELS
AU - Guasch, Oriol
AU - Freixes, Marc
AU - Arnela, Marc
AU - Van Hirtum, Annemie
N1 - Publisher Copyright:
© 2023 First author et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
PY - 2023
Y1 - 2023
N2 - Lumped mass models of the vocal folds have been widely used to analyze the physics of human phonation. This is a strongly non-linear process that results in regular self-oscillations of the vocal folds. However, various factors such as polyps, excessive subglottal pressure, etc., can alter such motion and make it chaotic. Ideally, it would be possible to use a smart material to control the dynamics of the vocal folds and restore its regularity. In this paper, we will see the effects of such a control strategy on the generation of vowels. The chaotic and the controlled train of glottal pulses will be imposed as boundary conditions at the glottis of a three-dimensional model of the vocal tract (VT). Then, the finite element method will be used to solve the wave equation inside the VT and the spectra and sound of the generated vowels will be compared to check the performance of the chaos control strategy on phonation.
AB - Lumped mass models of the vocal folds have been widely used to analyze the physics of human phonation. This is a strongly non-linear process that results in regular self-oscillations of the vocal folds. However, various factors such as polyps, excessive subglottal pressure, etc., can alter such motion and make it chaotic. Ideally, it would be possible to use a smart material to control the dynamics of the vocal folds and restore its regularity. In this paper, we will see the effects of such a control strategy on the generation of vowels. The chaotic and the controlled train of glottal pulses will be imposed as boundary conditions at the glottis of a three-dimensional model of the vocal tract (VT). Then, the finite element method will be used to solve the wave equation inside the VT and the spectra and sound of the generated vowels will be compared to check the performance of the chaos control strategy on phonation.
KW - chaotic oscillations
KW - finite element method
KW - numerical voice production
KW - phonation pacemaker
KW - vocal fold mass model
KW - vocal tract acoustics
UR - http://www.scopus.com/inward/record.url?scp=85191258745&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85191258745
T3 - Proceedings of Forum Acusticum
BT - Forum Acusticum 2023 - 10th Convention of the European Acoustics Association, EAA 2023
PB - European Acoustics Association, EAA
T2 - 10th Convention of the European Acoustics Association, EAA 2023
Y2 - 11 September 2023 through 15 September 2023
ER -