Estimating Tremor in Vocal Fold Biomechanics for Neurological Disease Characterization

Pedro Gomez-Vilda, Victor Nieto-Lluis, Victoria Rodellar-Biarge, Agustin Alvarez-Marquina, Luis M. Mazaira-Fernandez, Rafael Martinez-Olalla, Cristina Munoz-Mulas, Mario Fernandez-Fernandez, Carlos Ramirez-Calvo
2013 2013 18th International Conference on Digital Signal Processing (DSP)  
Neurological Diseases (ND) are affecting larger segments of aging population every year. Treatment is dependent on expensive accurate and frequent monitoring. It is well known that ND leave correlates in speech and phonation. The present work shows a method to detect alterations in vocal fold tension during phonation. These may appear either as hypertension or as cyclical tremor. Estimations of tremor may be produced by autoregressive modeling of the vocal fold tension series in sustained
more » ... ion. The correlates obtained are a set of cyclicality coefficients, the frequency and the root mean square amplitude of the tremor. Statistical distributions of these correlates obtained from a set of male and female subjects are presented. Results from five study cases of female voice are also given.
doi:10.1109/icdsp.2013.6622735 dblp:conf/icdsp/VildaLBMMMMFR13 fatcat:ubvszhuiwrb4zn6z3mvpuwc2xm