TY - JOUR
T1 - A unified numerical simulation of vowel production that comprises phonation and the emitted sound
AU - Degirmenci, Niyazi Cem
AU - Jansson, Johan
AU - Hoffman, Johan
AU - Arnela, Marc
AU - Sánchez-Martín, Patricia
AU - Guasch, Oriol
AU - Ternström, Sten
N1 - Funding Information:
This work has been supported by EU-FET grant EUNISON 308874. The authors from the Universitat Ramon Llull also acknowledge the Agencia Estatal de Investigación (AEI) and FEDER, EU, through project GENIOVOX TEC2016-81107-P, and the grant 2014-SGR-0590 from the Secretaria d’Universitats i Recerca del Departament d’Economia i Coneix-ement (Generalitat de Catalunya). The fourth and sixth authors also respectively thank the support of grants 2016-URL-IR-013 and 2016-URL-IR-010 from the Generalitat de Catalunya and the Universitat Ramon Llull.
Publisher Copyright:
Copyright © 2017 ISCA.
PY - 2017
Y1 - 2017
N2 - A unified approach for the numerical simulation of vowels is presented, which accounts for the self-oscillations of the vocal folds including contact, the generation of acoustic waves and their propagation through the vocal tract, and the sound emission outwards the mouth. A monolithic incompressible fluid-structure interaction model is used to simulate the interaction between the glottal jet and the vocal folds, whereas the contact model is addressed by means of a level set application of the Eikonal equation. The coupling with acoustics is done through an acoustic analogy stemming from a simplification of the acoustic perturbation equations. This coupling is one-way in the sense that there is no feedback from the acoustics to the flow and mechanical fields. All the involved equations are solved together at each time step and in a single computational run, using the finite element method (FEM). As an application, the production of vowel [i] has been addressed. Despite the complexity of all physical phenomena to be simulated simultaneously, which requires resorting to massively parallel computing, the formant locations of vowel [i] have been well recovered.
AB - A unified approach for the numerical simulation of vowels is presented, which accounts for the self-oscillations of the vocal folds including contact, the generation of acoustic waves and their propagation through the vocal tract, and the sound emission outwards the mouth. A monolithic incompressible fluid-structure interaction model is used to simulate the interaction between the glottal jet and the vocal folds, whereas the contact model is addressed by means of a level set application of the Eikonal equation. The coupling with acoustics is done through an acoustic analogy stemming from a simplification of the acoustic perturbation equations. This coupling is one-way in the sense that there is no feedback from the acoustics to the flow and mechanical fields. All the involved equations are solved together at each time step and in a single computational run, using the finite element method (FEM). As an application, the production of vowel [i] has been addressed. Despite the complexity of all physical phenomena to be simulated simultaneously, which requires resorting to massively parallel computing, the formant locations of vowel [i] have been well recovered.
KW - Finite element method
KW - Fluid-structure interaction
KW - Numerical voice production
KW - Phonation
KW - Vocal tract acoustics
UR - http://www.scopus.com/inward/record.url?scp=85039159138&partnerID=8YFLogxK
U2 - 10.21437/Interspeech.2017-1239
DO - 10.21437/Interspeech.2017-1239
M3 - Conference article
AN - SCOPUS:85039159138
SN - 2308-457X
VL - 2017-August
SP - 3492
EP - 3496
JO - Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
JF - Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
T2 - 18th Annual Conference of the International Speech Communication Association, INTERSPEECH 2017
Y2 - 20 August 2017 through 24 August 2017
ER -