Third International Conference on Spoken Language Processing (ICSLP 94)

Yokohama, Japan
September 18-22, 1994

KT-Stock: A Speaker-Independent Large-Vocabulary Speech Recognition System over the Telephone

Myoung-Wan Koo, Sang-Kyu Park, Kyung-Tae Kong, Sam-joo Doh

Software Research Labs, Korea Telecom, Seoul, Korea

In this paper, we present a speaker-independent, large-vocabulary speech recognition system over the telephone (KT-STOCK) . If a user say isolated Korean company name over the telephone according to the voice instruction, the system announces real time stock quotes. The system can recognize 892 words consisting of 9 control words and 883 company names listed on the Korea Stock Exchange. The system is a HMM(hidden Markov model)-based isolated speech recognizer which uses phoneme-like unit as a basic unit. Currently, we have achieved recognition results of 92.0% over the telephone network.

Full Paper

Bibliographic reference.  Koo, Myoung-Wan / Park, Sang-Kyu / Kong, Kyung-Tae / Doh, Sam-joo (1994): "KT-stock: a speaker-independent large-vocabulary speech recognition system over the telephone", In ICSLP-1994, 1387-1390.