Document Detail

Comparison of measures of variability of speech movement trajectories using synthetic records.
MedLine Citation:
PMID:  15989396     Owner:  NLM     Status:  MEDLINE    
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.
Jorge C Lucero
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
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:
Created Date:  2005-07-01     Completed Date:  2006-04-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9705610     Medline TA:  J Speech Lang Hear Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  336-44     Citation Subset:  IM    
Department of Mathematics, University of Brasilia, Brazil.
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MeSH Terms
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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