Third International Conference on Spoken Language Processing (ICSLP 94)

Yokohama, Japan
September 18-22, 1994

Recent Technology Developments in Connected Digit Speech Recognition

Biing-Hwang Juang, Jay G. Wilpon

AT&T Bell Laboratories, Murray Hill, NJ, USA

The use of automatic speech recognition (ASR) over telephone lines has increased tremendously over the past several years. One of the most important vocabularies for ASR technology today is the digit set. The ability to recognize a string of fluently spoken digits is essential to many applications. Over the past year, our experience with connected digit recognition in real-world settings has steadily increased. We have learned that current connected digit recognition algorithms are not robust to - (1) the increased variation in pronunciation and articulation, and (2) the variety of transducer, transmission and background conditions that exist in the telephone network. Hence, if improvements in recognition performance are to be achieved these issues have to explicitly considered. In this paper, we report results of several directions of research aiming at increasing the robustness and performance of connected digit recognition over the telephone network.

Full Paper

Bibliographic reference.  Juang, Biing-Hwang / Wilpon, Jay G. (1994): "Recent technology developments in connected digit speech recognition", In ICSLP-1994, 2135-2138.