Speech Processing Technology for CALL(<Feature Articles>CALL Systems and Acoustic Analysis)

Abstract

In this paper, we survey automatic evaluation methods for pronunciation proficiency of English and Japanese. We also introduce an English speech database read by Japanese students and a Japanese speech database read by foreign students, which were used in developing the evaluation systems and testing the systems. Finally, we describe our automatic evaluation methods for pronunciation of English and Japanese. Our methods for the evaluation of pronunciation proficiency approximate evaluation by teachers.