Study of complexity in normal and pathological speech signals

Author

Torres, M.E. ; Gamero, L.G. ; Rufiner, H.L. ; Martinez, C. ; Milone, D.H. ; Schlotthauer, G.

Author_Institution

Laboratorio de Dinamicas no Lineales y Senales, Univ. Nacional de Entre Rios, Argentina

Volume

3

fYear

2003

fDate

17-21 Sept. 2003

Firstpage

2339

Abstract

The application of complexity measures to the analysis of different biological signals have contributed to give a better understanding of the dynamical systems involved in their generation. In this work we present a comparative study of the complexity of speech signals from subjects with normal phonation and patients with laryngeal pathologies of the vocal system. Different complexity measures were considered in this study. Our results suggest that some of them would allow to discriminate between normal and pathological voices. This result could give an indication in order to assist the diagnostic or the treatment in the clinical practice.

Keywords

medical signal processing; nonlinear dynamical systems; speech; speech processing; biological signals; complexity measures; dynamical systems; laryngeal pathologies; normal phonation; normal speech signals; normal voices; pathological speech signals; pathological voices; vocal system; Chaos; Difference equations; Differential equations; Entropy; Laboratories; Noise robustness; Nonlinear dynamical systems; Pathology; Signal analysis; Speech;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7789-3

Type

conf

DOI

10.1109/IEMBS.2003.1280385

Filename

1280385