Finite elements in vocal tract acoustics generation of vowels. (Record no. 2600)
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| fixed length control field | 02188nam a22001457a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20160708161521.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 160708b xxu||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | National Acoustic Laboratories |
| 245 ## - TITLE STATEMENT | |
| Title | Finite elements in vocal tract acoustics generation of vowels. |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc | Most physics related to voice production takes place in our larynx and in our vocal tract. In this work we<br/>will focus on the latter and show its role in the generation of vowels, diphthongs and sibilants. A review<br/>will be made of the involved partial differential equations and the finite element methods (FEM) used to<br/>solve them. These equations may range from the irreducible wave equation in the case of vowels, to its<br/>mixed formulation in an Arbitrary Eulerian-Lagrangian (ALE) framework in the case of diphthongs, or<br/>to the incompressible Navier-Stokes equations, which are solved to obtain the acoustic source terms of<br/>acoustic analogies in the numerical generation of sibilants. Yet, it is well-known that for mixed problems<br/>in general, the standard Galerkin FEM suffers from oscillations which make necessary to resort to some<br/>kind of numerical stabilization. The variational multiscale methods (VMM), also often referred to as<br/>subgrid scale stabilization (SGS) methods, offer a nice way out to this situation by splitting the problem<br/>unknowns into large scales, resolvable by the computational mesh, and small scales whose effects onto<br/>the large ones have to be modeled. The additional terms in the variational equations arising from the<br/>modeled subscales not only account for stabilization but also offer many other advantages that will be<br/>outlined in the present work. As regards the numerical examples, three-dimensional simulations of vowels<br/>and diphthongs will be presented, as well as a simulation on sound generated by flow past a sharp edge<br/>at the exit of a rectangular duct, which is important for understanding some basic features of sibilant<br/>production. |
| 773 0# - HOST ITEM ENTRY | |
| Title | Acoustics 2015 Hunter Valley 15-18 November 2015 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/410/p134.pdf?sequence=1&isAllowed=y">http://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/410/p134.pdf?sequence=1&isAllowed=y</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Universal Decimal Classification |
| Koha item type | Journal article |
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