Speech synthesis device and speech synthesis method for changing a voice characteristic
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United States of America Patent
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Mar 22, 2011
Grant Date -
Oct 4, 2007
app pub date -
Apr 1, 2005
filing date -
May 11, 2004
priority date (Note) -
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Abstract
A speech synthesis device, in which the sound quality is not significantly degraded when generating a synthesized sound, includes a target element information generation unit (102), an element database (103), an element selection unit (104), a voice characteristics designation unit (105), a voice characteristics transformation unit (106), a distortion determination unit (108), and a target element information correction unit (109). When the speech element sequence transformed by the voice characteristics transformation unit (106) is determined as distorted by the distortion determination unit (108), the target element information correction unit (109) corrects the speech element information generated by the target element information generation unit (102) to the speech element information of the transformed voice characteristic, and the element selection unit (104) reselects a speech element sequence. Therefore, the synthesized sound of the voice characteristic designated by the voice characteristics designation unit (105) is generated without degrading the sound quality of the synthesized sound.
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