| Comparison of measures of variability of speech movement trajectories using synthetic records. | |
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MedLine Citation:
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PMID: 15989396 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In speech research, it is often desirable to assess quantitatively the variability of a set of speech movement trajectories. This problem is studied here using synthetic trajectories, which consist of a common pattern and terms representing amplitude and phase variability. The results show that a technique for temporal alignment of the records based on functional data analysis allows us to extract the pattern and variability terms as separate functions, with good approximation. Indices of amplitude and phase variability are defined, which provide a more accurate assessment of variability than previous approaches. |
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Authors:
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Jorge C Lucero |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of speech, language, and hearing research : JSLHR Volume: 48 ISSN: 1092-4388 ISO Abbreviation: J. Speech Lang. Hear. Res. Publication Date: 2005 Apr |
Date Detail:
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Created Date: 2005-07-01 Completed Date: 2006-04-20 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9705610 Medline TA: J Speech Lang Hear Res Country: United States |
Other Details:
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Languages: eng Pagination: 336-44 Citation Subset: IM |
Affiliation:
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Department of Mathematics, University of Brasilia, Brazil. lucero@mat.unb.br |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms Biomechanics Humans Linear Models Mathematical Computing Models, Biological Nonlinear Dynamics Speech / physiology* Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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