Third International Conference on Spoken Language Processing (ICSLP 94)

Yokohama, Japan
September 18-22, 1994

Real-time Processing of Electroglottographic Waveforms for the Evaluation of Phonation Types

B. Craig Dickson, John H. Esling, Roy C. Snell

Speech Technology Research Ltd., Victoria, B.C., Canada and Department of Linguistics, University of Victoria, Victoria, B.C., Canada

A new process has been developed for automatically extracting and displaying selectable quotients of electroglottographic (EGG) waveforms in real time. The process relies upon the use of an algorithm that eliminates DC float and broadband noise from the captured EGG signal, without introducing phase distortion. The real-time capabilities facilitate visual feedback of the fundamental frequency and quotient results, both of which are reported as pitch-synchronous time-varying contours. Alternatively, a real-time scattergram mode that plots quotient values relative to fundamental frequency may be used to obtain visual feedback of phonation control.

Full Paper

Bibliographic reference.  Dickson, B. Craig / Esling, John H. / Snell, Roy C. (1994): "Real-time processing of electroglottographic waveforms for the evaluation of phonation types", In ICSLP-1994, 647-650.