Ninth International Conference on Spoken Language Processing

Pittsburgh, PA, USA
September 17-21, 2006

Tracking of Involuntary Formant Frequency Variations and Application to Parkinsonian Speech

Laurence Cnockaert (1), Jean Schoentgen (1), Pascal Auzou (2,3), Canan Ozsancak (3,4), Francis Grenez (1)

(1) Universite Libre de Bruxelles, Belgium; (2) Fondation Hopale, France; (3) CHRU Lille, France; (4) Service de Neurologie, Centre Hospitalier de Boulogne sur Mer, France

The objective of this paper is to present a formant frequency estimation method, developed with a view to track small variations due to involuntary vocal tract movement. The formant frequency estimation is based on the instantaneous frequencies obtained by means of a complex wavelet transform and is synchronised with the glottal cycle. Results for synthetic speech signals show the precision of the formant frequency estimation method. Results are presented for speech signals from both normophonic speakers and speakers with Parkinson's disease.

Full Paper

Bibliographic reference.  Cnockaert, Laurence / Schoentgen, Jean / Auzou, Pascal / Ozsancak, Canan / Grenez, Francis (2006): "Tracking of involuntary formant frequency variations and application to parkinsonian speech", In INTERSPEECH-2006, paper 1043-Tue2A1O.1.