Although the success of automatic speech recognition (ASR)-based Computer Assisted Pronunciation Training (CAPT) systems is increasing, little is known about the pedagogical effectiveness of these systems. This is particularly regrettable because ASR technology still suffers from limitations that may result in the provision of erroneous feedback,…

We have developed an English pronunciation learning system which estimates the intelligibility of Japanese learners' speech and ranks their errors from the viewpoint of improving their intelligibility to native speakers. Error diagnosis is particularly important in self-study since students tend to spend time on aspects of pronunciation that do…

This paper presents the overall considerations and pedagogical approach which were at the basis of the development of an innovative web-based CALL application, Ellips (Electronic Language Learning Interactive Practising System). It describes the program's most salient features, illustrating in particular the technical challenges involved in the…

The acquisition of new vowel sounds is one of the most challenging tasks for the adult learner of a second language. It is also an aspect which requires a great deal of time and individual attention. Learners of English are particularly hampered by the irregular orthographic representation of vowel sounds. This paper reports on research in…