7th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2011)

Florence, Italy
August 25-27, 2011

Tremor in Speakers with Spasmodic Dysphonia

Maria Koutsogiannaki (1), Yannis Pantazis (1), Yannis Stylianou (1), Philippe H. Dejonckere (2)

(1) Institute of Computer Science, FORTH, and Multimedia Informatics Lab, CSD, UoC, Greece
(2) Utrecht University, Utrecht, The Netherlands

The objective of this work is the estimation of vocal tremor in patients with spasmodic dysphonia before and after treatment, and the comparison of their tremor characteristics with those estimated from healthy speakers. As an outcome, a new tremor attribute is introduced, the deviation of the modulation level and a novel method is proposed for classifying speakers according to the prevalence of tremor in their voice. Results are consistent with subjective evaluations on patients who suffer from spasmodic dysphonia and confirm that the proposed method can be used for accurate estimation and objective ranking of the severity of tremor.

Index Terms. voice quality, vocal tremor, dysphonia, deviation of modulation level

Full Paper (reprinted with permission from Firenze University Press)

Bibliographic reference.  Koutsogiannaki, Maria / Pantazis, Yannis / Stylianou, Yannis / Dejonckere, Philippe H. (2011): "Tremor in speakers with spasmodic dysphonia", In MAVEBA-2011, 139-142.