VOICE QUALITY CONVERSION DEVICE, METHOD THEREFOR, VOWEL INFORMATION GENERATING DEVICE, AND VOICE QUALITY CONVERSION SYSTEM

摘要

Disclosed is a voice quality conversion device provided with: a vocal track and sound source separating unit (101) which separates an inputted audio into vocal track information and sound source information; an oral aperture calculating unit (102) which calculates the oral aperture from the vocal track information of a vowel; a target vowel database storing unit (103) which stores information for each vowel containing information pertaining to the type of vowel, the oral aperture, and the vocal track information of a target speaker; an oral aperture matching degree calculating unit (104) which calculates the matching degree between the calculated oral aperture and the oral aperture contained in the information for each vowel stored in the target vowel database storing unit (103); a target vowel selection unit (105) which selects the information of a vowel from among the information for each vowel stored within the target vowel database storing unit (103) on the basis of the matching degree; a vowel modification unit (106) which modifies the vocal track information of the vowel contained in the input audio by using the vocal track information contained in the selected information for the vowel; and a synthesizing unit (108) which synthesizes an audio by using the vocal track information of the input audio after the vocal track information of the vowel was modified and by using the sound source information.