Expressive Multi-language Speech Synthesis Based on the Generation Process Model and Its Use for Automatic Speech Translation

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A unified study on prosody control for multi-languages was conductedbased on the generation process model of fundamental frequency contours(F_0 model). We developeda method of prosody adaptation, where differences in F_0 model commands were learned from parallelspeech corpus and were applied to baseline speech. Focus control, style conversion and voiceconversion were realized. Furthermore, by approximating F_0 contours of training speech corpusand/or generated F_0 contours using the F_0 model, we improved the quality of synthetic speech by theHMM-based speech synthesis. Also, we added focus control. Based on the above results, experiments were conducted on conveying discourse information and intentions in speech Translation.