TY - GEN

T1 - Finite element computation of diphthong sounds using tuned two-dimensional vocal tracts

AU - Arnela, Marc

AU - Guasch, Oriol

AU - Codina, Ramon

AU - Espinoza, Hector

PY - 2014

Y1 - 2014

N2 - Finite element methods (FEM) are increasingly being used to simulate the acoustics of the vocal tract. For vowel production, the irreducible wave equation for the acoustic pressure is typically solved. However, diphthong sounds require moving vocal tract geometries so that the wave equation has to be expressed in an Arbitrary Lagrangian-Eulerian (ALE) framework. It then becomes more convenient to directly work with the wave equation in its mixed form, which not only involves the acoustic pressure but also the acoustic velocity. In turn, this entails some numerical difficulties that require resorting to stabilized FEM approaches. In this work, FEM simulations for the wave equation in mixed form are carried out to produce some diphthongs. Tuned two-dimensional vocal tracts are used which mimic the behavior of three-dimensional vocal tracts with circular cross-section.

AB - Finite element methods (FEM) are increasingly being used to simulate the acoustics of the vocal tract. For vowel production, the irreducible wave equation for the acoustic pressure is typically solved. However, diphthong sounds require moving vocal tract geometries so that the wave equation has to be expressed in an Arbitrary Lagrangian-Eulerian (ALE) framework. It then becomes more convenient to directly work with the wave equation in its mixed form, which not only involves the acoustic pressure but also the acoustic velocity. In turn, this entails some numerical difficulties that require resorting to stabilized FEM approaches. In this work, FEM simulations for the wave equation in mixed form are carried out to produce some diphthongs. Tuned two-dimensional vocal tracts are used which mimic the behavior of three-dimensional vocal tracts with circular cross-section.

UR - http://www.scopus.com/inward/record.url?scp=84953274233&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84953274233

T3 - Proceedings of Forum Acusticum

BT - Forum Acusticum, FA 2014

A2 - Borkowski, Bartlomiej

PB - European Acoustics Association, EAA

T2 - 7th Forum Acusticum, FA 2014

Y2 - 7 September 2014 through 12 September 2014

ER -