| 摘要 |
PROBLEM TO BE SOLVED: To provide a pronunciation evaluation system that is suitable for personal learning, and to provide a pronunciation evaluation program therefor. SOLUTION: The pronunciation evaluation system extracts formant frequencies F1-F3 from speech data to be evaluated acquired by a speech data acquisition program by means of a formant extraction program. Then, the system generates a circular image on the basis of a coordinate determined by allocating the formant frequencies F1, F2 to axes J1, J2 of two-dimensional coordinate images formed of a green axis J1 corresponding to the formant frequency F1 and a red axis J2 corresponding to the formant frequency F2 by using an image data generating program. The system provides perspective in a direction vertical to a coordinate plane by the two-dimensional coordinate images to the circular image on the basis of the formant frequency F3, and outputs a two-dimensional virtual coordinate image and the circular image to a display by using an image data output program. COPYRIGHT: (C)2011,JPO&INPIT
|
