Pronunciation Network Construction of Speech Recognizer for Mispronunciation Detection of Foreign Language

한국인의 외국어 발화오류 검출을 위한 음성인식기의 발음 네트워크 구성

An automatic pronunciation correction system provides learners with correction guidelines for each mispronunciation. In this paper we propose an HMM based speech recognizer which automatically classifies pronunciation errors when Koreans speak Japanese. We also propose two pronunciation networks for automatic detection of mispronunciation. In this paper, we evaluated performances of the networks by computing the correlation between the human ratings and the machine scores obtained from the speech recognizer.