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Title: Optimal size of time window in nonlinear features for voice quality measurement
Authors: Alonso, Jesus B. 
Díaz-de-María, Fernando
Travieso, Carlos M. 
Ferrer, Miguel A. 
UNESCO Clasification: 3307 Tecnología electrónica
Keywords: Speech
Issue Date: 2005
Publisher: 0302-9743
Journal: Lecture Notes in Computer Science 
Conference: International Conference on Non-Linear Speech Processing 
International Conference on Non-Linear Speech Processing, NOLISP 2005 
Abstract: In this paper we propose the use of nonlinear speech features to improve the voice quality measurement. We have tested a couple of features from the Dynamical System Theory, namely: the Correlation Dimension and the largest Lyapunov Exponent. In particular, we have studied the optimal size of time window for this type of analysis in the field of the characterization of the voice quality. Two systems of automatic detection of laryngeal pathologies, one of them including these features, have been implemented with the purpose of validating the usefulness of the suggested nonlinear features. We obtain slight improvements with respect to a classical system.
ISBN: *************
ISSN: 0302-9743
Source: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)[ISSN 0302-9743],v. 3817 LNAI, p. 206-218
Appears in Collections:Actas de congresos
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