EUROSPEECH '89

This paper describes a new timedomain articulatory speech synthesis model. The system consists of a model of the speech articulators, a timedomain simulation of a lossy acoustic tube model of the vocal tract and a twomass model of the vocal cords. The vocal tract area function is expressed as a transformation of ten articulatory variables which provide a twodimensional geometrical description of the vocal tract in the midsagittal plane. The acoustic tube model is based on the KellyLochbaum structure which uses the method of reflection coefficients to compute the foward and backward sound pressure waves in a lossless digital transmission line analogue of the vocal tract. The basic KellyLochbaum structure has been extended to permit the modelling of viscous friction losses, yielding wall losses, radiation from the mouth, variable vocal tract length, aspiration and frication.
Bibliographic reference. Owens, F. J. / Wright, G. T. H. / Ramsey, N. W. (1989): "A timedomain articulatory speech synthesiser", In EUROSPEECH1989, 21762179.