4. The method of claim 1 , further comprising selecting, by the system, k final candidate utterances having the closest distances and generating the prosodic contour for the text to be synthesized based on a combination of the prosodic contours of the k final candidate utterances, wherein k represents a positive integer.
5. The method of claim 4 , wherein the k final candidate utterances are combined by averaging the prosodic contours of the k final candidate utterances.