Citation
Gómez Vilda, Pedro and Nieto Lluis, Victor and Rodellar Biarge, M. Victoria and Álvarez Marquina, Agustin and Mazaira Fernández, Luis Miguel and Martínez Olalla, Rafael and Muñoz Mulas, Cristina Elena and Fernández Fernández, Mario and Ramírez Calvo, Carlos
(2013).
Estimating tremor in Vocal Fold Biomechanics for Neurological Disease characterisation.
In: "18th International Conference on Digital Signal Processing", 01/07/2013 - 03/07/2013, Santorini, Grecia. ISBN 978-1-4673-5805-7. pp. 1-6.
https://doi.org/10.1109/ICDSP.2013.6622735.
Abstract
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 auto-regressive modeling of the vocal fold tension series in sustained phonation. 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.
