Data processing: speech signal processing – linguistics – language – Speech signal processing – Synthesis
Reexamination Certificate
2007-10-02
2007-10-02
Azad, Abul K. (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Synthesis
Reexamination Certificate
active
10284189
ABSTRACT:
A speech synthesis system for controlling a discontinuous distortion that occurs at the transition portion between concatenated phonemes which are speech units of a synthesized speech using a smoothing technique, comprising: a discontinuous distortion processing means adapted to predict a discontinuity at the transition portion between concatenated samples of phonemes used for a speech synthesis through a predetermined learning process, and control a discontinuity at the transition portion between the concatenated phonemes of the synthesized speech in such a fashion that it is smoothed adaptively to correspond to a degree of the predicted discontinuity. The smoothing filter smoothes the synthesized speech so that the discontinuity degree of synthesized speech follows the predicted discontinuity degree according to the filter coefficient (a) changed adaptively to correspond to a ratio of the predicted discontinuity degree to the real discontinuity degree. That is, since a discontinuity at a transition portion between concatenated phonemes of the synthesized speech (IN) is adaptively smoothed to follow that which occurs in the actually spoken sound, the synthesized speech (IN) can be approximated more closely to a real human voice.
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Kim Jeong-su
Lee Jae-won
Lee Ki-seung
Azad Abul K.
Buchanan & Ingersoll & Rooney PC
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