TEXT-TO-SPEECH SYNTHESIS DEVICE, PROGRAM AND TEXT-TO-SPEECH SYNTHESIS METHOD

摘要

In the case that speech is generated, the speech does not necessarily be clear due to such factors as a method and an order of the speech. A text-to-speech synthesis device is comprised of a text candidate generation unit (102) for generating a plurality of candidate texts composed of synonymous expression by analyzing an input text, a sound quality evaluation score calculation unit (103) for calculating a sound quality evaluation score on each of the candidate texts, a selection unit (104) for selecting a candidate text with the best sound quality evaluation score in a plurality of the candidate texts, a speech synthesis unit (105) for generating a synthetic speech which corresponds to the selected candidate text, so that the text-to-speech synthesis device transforms the input text to the extent that contents of a sentence, etc. are not subjected to change, and selects and outputs the synthetic speech which corresponds to the candidate text with the best sound quality evaluation score (see Fig. 1).