Audio data set creation device for perception test, optimization device, and audio synthesizer unit of computer program and sub cost function for speech synthesis

摘要

PPROBLEM TO BE SOLVED: To obtain a voice data set for perceptual examination so as to specify correspondence relation between optional physical quantity and perceptual evaluation regarding utterance. PSOLUTION: This creation device of voice data set for perceptual examination includes a unit speech element replacement part 40 which replaces an optional unit waveform speech element with other unit waveform speech element and creates a voice corpus 42 after replacement about each piece of utterance voice data included in a voice corpus 20, a featured value/featured value statistic calculation part 44 which calculates a plurality of kinds of featured values about each piece of utterance voice data after the replacement and sub-cost function derivation parts 48A to 48N which create the voice data set for perceptual examination by extracting a set of utterance voice data with large fluctuation of a specific featured value and with small fluctuation of other featured values from the corpus 42 based on the calculated featured value. PCOPYRIGHT: (C)2005,JPO&NCIPI