The presentation concerns a method of wavemorphing applied to a model of the phonatory excitation, the instantaneous frequency and the harmonic richness of which are controlled. This method is based on an interpolation between the Fourier coefficients of two template waveforms. The method enables morphing continuously from one waveshape to another. Possible applications are the simulation of di...

This paper reports on the development of an English speech synthesis system for a Japanese amyotropic lateral sclerosis patient as part of the project of developing a bilingual communication aid for this patient. The patient had a tracheotomy three years ago and anticipates the possibility of losing his phonatory function. His English speech database for Festival, a free speech synthesis system...

Greece: Nonlinear methods in speech processing with applications to recognition: Modulations, fractals, chaos (Invited presentation) 10:00 Coffee break 10:30 WG 4 Session: Voice Analysis and Enhancement (Chair B. Petek) J. Schoentgen, Univ. Libre de Bruxelles, Belgium: Analysis and synthesis of the phonatory excitation signal by means of a polynomial waveshaper J. Rouat, Univ. Québecà Chicoutim...

The phonatory function of the larynx and its disturbance were discussed on the basis of the author's data of 1) electromyographical observation of the human larynx, 2) radiographical study of the larynx, 3) measurement of the mean subglottal air pressure as well as the vibratory subglottal pressure variation during phonation, and 4) analysis of vocal cord movements during phonation with high sp...