We propose a method for concatenative speech synthesis that permits to obtain a better matching between the logF0 and duration predicted by the prosody module and the waveform generation back-end. The proposed method is based upon our previous multilevel parametric F0 model and Toshiba's plural unit selection and fusion synthesizer. The method adds a feedback loop from the back-end into the prosody module so that the prosodical information of the selected units is used to re-estimate new prosody values. The feedback loop defines a frame-level prosody model which consists of the average value and variance of the duration and logF0 of the selected units. The log-likelihood defined by this model is added to the log-likelihood of the prosody model. From the maximization of this total log-likelihood, we obtain the prosody values that produce the optimum compromise between the distortion introduced by F0 discontinuities and the one created by the prosody adjusting signal processing.
|ジャーナル||Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH|
|出版ステータス||Published - 2009|
|イベント||10th Annual Conference of the International Speech Communication Association, INTERSPEECH 2009 - Brighton, United Kingdom|
継続期間: 2009 9月 6 → 2009 9月 10
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