Path of Speech Technologies in Computer Assisted Language Learning : From Research Toward Practice

This collection examines the promise and limitations for computer-assisted language learning of emerging speech technologies: speech recognition, text-to-speech synthesis, and acoustic visualization. Using pioneering research from contributors based in the US and Europe, this volume illustrates the uses of each technology for learning languages, the problems entailed in their use, and the solutions evolving in both technology and instructional design. To illuminate where these technologies stand on the path from research toward practice, the book chapters are organized to reflect five stages in the maturation of learning technologies: basic research, analysis of learners’ needs, adaptation of technologies to meet needs, development of prototypes to incorporate adapted technologies, and evaluation of prototypes. The volume demonstrates the progress in employing each class of speech technology while pointing up the effort that remains for effective, reliable application to language learning.

Melissa Holland directs research in multilingual technology at U.S. Army Research Lab, including machine translation, speech recognition, and document image processing. In the area of computer applications for language learning, she has edited a book (Erlbaum) on natural language processing and a special issue of CALICO Journal on speech recognition.

F. Pete Fisher is a Senior Electronics Engineer in the Computational and Information Sciences Directorate at the US Army Research Laboratory in Adelphi, MD.