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A Unified Numerical...
A Unified Numerical Simulation of Vowel Production That Comprises Phonation and the Emitted Sound
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- Degirmenci, Niyazi Cem (author)
- KTH,Beräkningsvetenskap och beräkningsteknik (CST)
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- Jansson, Johan (author)
- KTH,Beräkningsvetenskap och beräkningsteknik (CST)
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- Hoffman, Johan, 1974- (author)
- KTH,Beräkningsvetenskap och beräkningsteknik (CST)
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Arnela, Marc (author)
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Sánchez-Martín, Patricia (author)
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Guasch, Oriol (author)
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- Ternström, Sten, 1956- (author)
- KTH,Tal, musik och hörsel, TMH
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(creator_code:org_t)
- The International Speech Communication Association (ISCA), 2017
- 2017
- English.
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In: Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH 2017. - : The International Speech Communication Association (ISCA). ; , s. 3492-3496
- Related links:
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Keyword
- Numerical voice production
- phonation
- vocal tract acoustics
- fluid-structure interaction
- finite element method
- Tillämpad matematik och beräkningsmatematik
- Applied and Computational Mathematics
Publication and Content Type
- ref (subject category)
- kon (subject category)
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