English call system with functions of speech segmentation and pronunciation evaluation using speech recognition technology

In communication learning by second language, three abilities have to be improved; listening, speaking and writing abilities. In this sense, it is important to evaluate user’s pronunciation ability and to detect mispronunciations in English CALL (Computer-Assisted Language Learning) systems. In this paper, we propose three functions (segmentation, phrasing and pronunciation evaluation) in the CALL system using speech recognition technologies. The system was evaluated by the answer to questionnaires for ten learners.