ENGLISH CALL SYSTEM WITH FUNCTIONS OF SPEECH SEGMENTATION AND PRONUNCIATION EVALUATION USING SPEECH RECOGNITION TECHNOLOGY

In communication learning by second language, three abil-ities have to be improved; listening, speaking and writing abilities. In this sense, it is important to evaluate user’s pro-nunciation ability and to detect mispronunciations in En-glish CALL (Computer-Assisted Language Learning) sys-tems. In this paper, we propose three functions (segmenta-tion, phrasing and pronunciation evaluation) in the CALL system using speech recognition technologies. The system was evaluated by the answer to questionnaires for ten learn-ers. 1