| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce deterioration of voice quality of voice when voices having various kinds of utterance content are synthesized.SOLUTION: A voice synthesizer comprises: a conversion part for converting voice having first voice quality into second voice quality different from the first voice quality; a creation part for creating a conversion model in which variation in series of voice of the second quality is associated with the feature amount of voice of the first quality by leaning a correspondence between a feature amount indicating complexity of an articulation component included in the voice of the first voice quality and variation in series which is dispersion of an articulation component included in the voice of the second voice quality, using the voice indicating predetermined language information which was uttered in advance by the first voice quality and second voice quality respectively; and an identification part for receiving the voice of the first voice quality which is an object of conversion by the conversion part, and based on the feature amount indicating complexity of the articulation component included in the voice and conversion model, determining average and dispersion of the variation in series indicated by the voice which is the received voice and is expressed by the second voice quality. The conversion part creates the voice having the variation in series which is identified by the average and dispersion determined by the identification part, as the voice which is the received voice having the first voice quality and is expressed by the second voice quality.</p> |
