Extraction of control parameters for the voice source in a text-to-speech system
Johan de Veth, Bert Cranen, Helmer Strik, Lou Boves · International Conference on Acoustics, Speech, and Signal Processing · 2002
In order to derive voice source control rules from natural speech, the parameters of a source model must be derived from the acoustic signal. This is done by parameterizing the results of glottal inverse filtering. A number of different inverse filtering procedures and the ease with which their results can be parameterized are compared. It is shown that closed glottic interval covariance linear predictive coding is as powerful as more sophisticated techniques, because it is the only known method that can strictly be limited to the closed glottis interval.>