| 摘要 |
PROBLEM TO BE SOLVED: To realize the speaker-adaptable capacity excellent in accuracy in the speaker adaptation using the maximum posterior probability estimating method. SOLUTION: A set 17 of a large number of speaker models independent from an adaptable speaker is prepared using an acoustic analyzing means equivalent to an acoustic analysis part 10. Then, the sound of the adaptable speaker is inputted, and analyzed by the acoustic analysis part 10, the distribution of the feature parameter vector of the adaptable speaker is obtained, and preserved as the sample data 16 for adaptation. An datable model preparation part 15 measures the distance between the adaptable speaker model preserved as the sample data 16 for adaptation and a large number (N-pieces) of speaker models preserved as the set 17 of the speaker model, and the speaker models of M pieces are selected in the order of smaller distance to the adaptable speaker model. The weighted addition of the selected speaker models of M pieces is achieved to determine the initial model. |
