| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, in a conventional speech synthesis device, connection time is not always appropriate, as control influence of F0 which is controlled by rhythm information generated in rhythm generation processing is not considered at all, because connection time setting of phoneme is set based on distortion between connecting phonemes. SOLUTION: The speech synthesis device includes: a time axis expanding/contracting means for expanding/contracting the selected phoneme to a time axis direction based on a rhythm symbol and rhythm information of an input text; a search range setting means for setting a search range of a connection point of the expanded/contracted phoneme; a connection point setting means for setting the connection point of the phoneme within the set search range based on the rhythm information; and a speech generation means for connecting the phoneme at the set connection point, and generating a speech signal according to the rhythm information. Thereby, F0 distortion is reduced and the synthesis speech with good quality is obtained. COPYRIGHT: (C)2009,JPO&INPIT
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