Method and apparatus for speech synthesis, program, recording medium, method and apparatus for generating constraint information and robot apparatus
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United States of America Patent
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Aug 12, 2008
Grant Date -
Jan 29, 2004
app pub date -
Mar 13, 2003
filing date -
Mar 15, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The emotion is to be added to the synthesized speech as the prosodic feature of the language is maintained. In a speech synthesis device 200, a language processor 201 generates a string of pronunciation marks from the text, and a prosodic data generating unit 202 creates prosodic data, expressing the time duration, pitch, sound volume or the like parameters of phonemes, based on the string of pronunciation marks. A constraint information generating unit 203 is fed with the prosodic data and with the string of pronunciation marks to generate the constraint information which limits the changes in the parameters to add the so generated constraint information to the prosodic data. A emotion filter 204, fed with the prosodic data, to which has been added the constraint information, changes the parameters of the prosodic data, within the constraint, responsive to the feeling state information, imparted to it. A waveform generating unit 205 synthesizes the speech waveform based on the prosodic data the parameters of which have been changed.
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