METHOD, DEVICE AND PROGRAM FOR GENERATING SPEECH ELEMENT, SPEECH SYNTHESIS METHOD AND DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a clear synthetic speech by solving a problem of attenuation caused by a phase difference in the case of averaging a speech waveform in a statistic speech element generating method.

SOLUTION: When extracting feature vectors from a plurality of speech waveform data of the same phoneme stored in a speech database 21 to generate the speech element of the phoneme, the feature vectors of the plurality of speech waveform data are averaged for each of a plurality of frequency bands by a band dividing part 23, feature vector extracting parts 24 and 26 and centroid calculating parts 25 and 27, so that band elements 204 and 207 as components of speech elements for each frequency band are generated and a speech element 208 is generated by merging these band elements 204 and 207 for each frequency band by a band merging part 28.

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