LEARNING DEVICE AND PROGRAM FOR LEARNING STATISTICAL MODEL USED FOR VOICE SYNTHESIS

摘要

To generate a statistical model for obtaining a synthesized voice signal of stable quality when learning is performed using a language feature amount including information on a pose.SOLUTION: An associating unit 13 of the learning device 1 temporally associates the language feature amount for each phoneme with the acoustic feature amount for each frame. A pose changing unit 14 changes a pose length indicated by pose information included in the temporally associated language feature amount, and generates a pause-changed language feature amount which reflects the changed pose length. Further, the pose changing unit 14 generates a pause-changed acoustic feature amount reflecting the changed pose length. A learning unit 15 treats a set of the language feature amount and the acoustic feature amount temporally associated with each other by the associating unit 13 as learning data, and also treats a set of the pause-changed language feature amount and the acoustic feature amount generated by the pause changing unit 14 as learning data, and learns a statistical model.SELECTED DRAWING: Figure 1