Automatic parameter extraction of fundamental frequency contours of speech based on a generative model
H. Fujisaki, Sumio Ohno, O. Tomita · 2002
The process of generating an F/sub 0/ contour from a small number of linguistically meaningful parameters, has been modeled quite accurately, and the model has been used extensively in speech synthesis. The paper deals with the inverse problem, i.e., that of extracting the model parameters from a given contour, which can only be solved by successive approximation. It presents a method for deriving a first-order approximation to a given F/sub 0/ contour from the linguistic information of the utterance, and refining the approximation by analysis-by-synthesis. The validity of the method has been confirmed experimentally.