Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds

For many years, the vocal tract shape has been approximated by one-dimensional (1D) area functions to study the production of voice. More recently, 3D approaches allow one to deal with the complex 3D vocal tract, although area-based 3D geometries of circular cross-section are still in use. However,...

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Detalles Bibliográficos
Autores: Arnela, Marc, Dabbaghchian, Saeed, Bladin, Rémi, Guasch, Oriol, Engwall, Olov, Van Hirtum, Annemie, Pelorson, Xavier
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:20.500.14342/5729
Acceso en línea:http://hdl.handle.net/20.500.14342/5729
https://doi.org/10.1121/1.4962488
Access Level:acceso abierto
Palabra clave:Vocal tract acoustics
Human voice
Acoustical properties
Acoustic field
Vowel systems
Wave propagation
Computer simulation
Finite-element analysis
Partial differential equations
Organs
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53
531/534
537
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spelling Influence of vocal tract geometry simplifications on the numerical simulation of vowel soundsArnela, MarcDabbaghchian, SaeedBladin, RémiGuasch, OriolEngwall, OlovVan Hirtum, AnnemiePelorson, XavierVocal tract acousticsHuman voiceAcoustical propertiesAcoustic fieldVowel systemsWave propagationComputer simulationFinite-element analysisPartial differential equationsOrgans00453531/534537For many years, the vocal tract shape has been approximated by one-dimensional (1D) area functions to study the production of voice. More recently, 3D approaches allow one to deal with the complex 3D vocal tract, although area-based 3D geometries of circular cross-section are still in use. However, little is known about the influence of performing such a simplification, and some alternatives may exist between these two extreme options. To this aim, several vocal tract geometry simplifications for vowels [ɑ], [i], and [u] are investigated in this work. Six cases are considered, consisting of realistic, elliptical, and circular cross-sections interpolated through a bent or straight midline. For frequencies below 4–5 kHz, the influence of bending and cross-sectional shape has been found weak, while above these values simplified bent vocal tracts with realistic cross-sections are necessary to correctly emulate higher-order mode propagation. To perform this study, the finite element method (FEM) has been used. FEM results have also been compared to a 3D multimodal method and to a classical 1D frequency domain model.info:eu-repo/semantics/publishedVersionAcoustical Society of AmericaUniversitat Ramon Llull. La SalleKTH Royal Institute of TechnologyUniversité Grenoble Alpes2016info:eu-repo/semantics/article12 p.http://hdl.handle.net/20.500.14342/5729https://doi.org/10.1121/1.4962488reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésJournal of the Acoustical Society of America (2016), Vol. 140, Nº3, pp 1707-1718© Acoustical Society of America. Tots els drets reservatsinfo:eu-repo/semantics/openAccessoai:recercat.cat:20.500.14342/57292026-05-29T05:05:01Z
dc.title.none.fl_str_mv Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds
title Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds
spellingShingle Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds
Arnela, Marc
Vocal tract acoustics
Human voice
Acoustical properties
Acoustic field
Vowel systems
Wave propagation
Computer simulation
Finite-element analysis
Partial differential equations
Organs
004
53
531/534
537
title_short Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds
title_full Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds
title_fullStr Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds
title_full_unstemmed Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds
title_sort Influence of vocal tract geometry simplifications on the numerical simulation of vowel sounds
dc.creator.none.fl_str_mv Arnela, Marc
Dabbaghchian, Saeed
Bladin, Rémi
Guasch, Oriol
Engwall, Olov
Van Hirtum, Annemie
Pelorson, Xavier
author Arnela, Marc
author_facet Arnela, Marc
Dabbaghchian, Saeed
Bladin, Rémi
Guasch, Oriol
Engwall, Olov
Van Hirtum, Annemie
Pelorson, Xavier
author_role author
author2 Dabbaghchian, Saeed
Bladin, Rémi
Guasch, Oriol
Engwall, Olov
Van Hirtum, Annemie
Pelorson, Xavier
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universitat Ramon Llull. La Salle
KTH Royal Institute of Technology
Université Grenoble Alpes
dc.subject.none.fl_str_mv Vocal tract acoustics
Human voice
Acoustical properties
Acoustic field
Vowel systems
Wave propagation
Computer simulation
Finite-element analysis
Partial differential equations
Organs
004
53
531/534
537
topic Vocal tract acoustics
Human voice
Acoustical properties
Acoustic field
Vowel systems
Wave propagation
Computer simulation
Finite-element analysis
Partial differential equations
Organs
004
53
531/534
537
description For many years, the vocal tract shape has been approximated by one-dimensional (1D) area functions to study the production of voice. More recently, 3D approaches allow one to deal with the complex 3D vocal tract, although area-based 3D geometries of circular cross-section are still in use. However, little is known about the influence of performing such a simplification, and some alternatives may exist between these two extreme options. To this aim, several vocal tract geometry simplifications for vowels [ɑ], [i], and [u] are investigated in this work. Six cases are considered, consisting of realistic, elliptical, and circular cross-sections interpolated through a bent or straight midline. For frequencies below 4–5 kHz, the influence of bending and cross-sectional shape has been found weak, while above these values simplified bent vocal tracts with realistic cross-sections are necessary to correctly emulate higher-order mode propagation. To perform this study, the finite element method (FEM) has been used. FEM results have also been compared to a 3D multimodal method and to a classical 1D frequency domain model.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.14342/5729
https://doi.org/10.1121/1.4962488
url http://hdl.handle.net/20.500.14342/5729
https://doi.org/10.1121/1.4962488
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of the Acoustical Society of America (2016), Vol. 140, Nº3, pp 1707-1718
dc.rights.none.fl_str_mv © Acoustical Society of America. Tots els drets reservats
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © Acoustical Society of America. Tots els drets reservats
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 12 p.
dc.publisher.none.fl_str_mv Acoustical Society of America
publisher.none.fl_str_mv Acoustical Society of America
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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