TY - GEN
T1 - INFLUENCE OF A REALISTIC HUMAN HEAD ON THE DIRECTIVITY OF VOWEL/A/BASED ON THREE-DIMENSIONAL FINITE ELEMENT SIMULATIONS
AU - Arnela, Marc
AU - Pereira-Vivas, Leonardo
AU - Egea, Jorge
N1 - Publisher Copyright:
© 2023 Marc Arnela 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 - Three-dimensional (3D) finite element simulations can be used to accurately simulate the human voice. These simulations involve the generation of sound waves from the vocal cords, their 3D propagation through a detailed 3D vocal tract, usually generated from Magnetic Resonance Imaging (MRI), and their emission outward from the lips. Most studies have focused on internal aspects of the vocal tract, which allowed them to simplify the human head as a spherical baffle or a flat plane. However, it is not clear to what extent this simplification affects the directivity of the voice. This work aims at examining 3D directivity effects of vowel sounds in the horizontal and vertical planes by means of finite element simulations. A detailed geometry is generated for this purpose, consisting of a 3D MRI-based vocal tract connected to a realistic human head designed from scratch. Preliminary results are presented for the vowel/a/, showing that large variations occur in the vocal tract acoustic response as the orientation and frequency increases for both the horizontal and vertical planes. These variations are especially notorious above 5 kHz, since in this frequency range not only planar modes but also higher order modes propagate through the vocal tract.
AB - Three-dimensional (3D) finite element simulations can be used to accurately simulate the human voice. These simulations involve the generation of sound waves from the vocal cords, their 3D propagation through a detailed 3D vocal tract, usually generated from Magnetic Resonance Imaging (MRI), and their emission outward from the lips. Most studies have focused on internal aspects of the vocal tract, which allowed them to simplify the human head as a spherical baffle or a flat plane. However, it is not clear to what extent this simplification affects the directivity of the voice. This work aims at examining 3D directivity effects of vowel sounds in the horizontal and vertical planes by means of finite element simulations. A detailed geometry is generated for this purpose, consisting of a 3D MRI-based vocal tract connected to a realistic human head designed from scratch. Preliminary results are presented for the vowel/a/, showing that large variations occur in the vocal tract acoustic response as the orientation and frequency increases for both the horizontal and vertical planes. These variations are especially notorious above 5 kHz, since in this frequency range not only planar modes but also higher order modes propagate through the vocal tract.
KW - finite element method
KW - vocal tract acoustics
KW - voice directivity
KW - vowels
UR - http://www.scopus.com/inward/record.url?scp=85191230990&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85191230990
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 -