The importance of duration and f0 for generating more natural intonation in the synthetic speech
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This dissertation presents the importance of diphones’ duration and f0 information in generating more natural intonation in unit selection speech synthesis. The results showed that diphones’ duration or f0 information was highly correlated to one another due to the prosodic properties inherited from the recorded human speech. Also only raising the importance of duration and f0 information largely can make the synthetic speech more natural.