| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for generating a fundamental frequency pattern to enable stable generation of natural synthetic sound closer to voice uttered by people. SOLUTION: In the device, a representative vector storage part 11 stores a plurality of representative vectors each corresponding to a prosodic control unit and having a section for changing the number of phonemes. A representative vector selection unit 1 selects a vector according to an input context from the representative vectors by applying a representative vector selection rule stored in a representative vector selection rule storage part 12 to the input context. An expansion/contraction ratio calculating unit 2 calculates an expansion/contraction ratio in a time-axis direction in a variable phoneme number corresponding section of the selected representative vector based on the length of an input phoneme duration. A representative vector expansion/contraction unit expands/contracts the selected representative vector based on the calculated expansion/contraction ratio. COPYRIGHT: (C)2009,JPO&INPIT
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