Study of complexity in normal and pathological speech signals
María Eugenia Torres, Lucas G. Gamero, Hugo Leonardo Rufiner, C. Martinez, Diego Humberto Milone, Gastón Schlotthauer · 2004
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.