Sixth International Conference on Spoken Language Processing
(ICSLP 2000)

Beijing, China
October 16-20, 2000

A Bi-lingual Mandarin/Taiwanese (Min-nan), Large Vocabulary, Continuous Speech Recognition System Based on the Tong-Yong Phonetic Alphabet (TYPA)

Ren-yuan Lyu (1), Chi-yu Chen (1), Yuang-chin Chiang (2), Min-shung Liang (1)

(1) Dept. of Electrical Engineering, Chang Gung University, Taoyuan, Taiwan
(2) Inst. of Statistics, Tsing Hua University, Hsin-chu, Taiwan

In this paper, we describe the first Mandarin/Taiwanese (Min-nan) bi-lingual, continuous speech recognition system for large vocabulary or vocabulary-independent applications. A phonetic transcription system called Tong-yong Phonetic Alphabet (TYPA) is described and used to transcribe the bilingual Mandarin/Taiwanese lexicons. The Right-Context- Dependent (RCD) phonetic continuous-density Hidden Markov Models (CHMM) based on TYPA are used as the acoustic models. A lexicon tree containing 40 thousand bilingual words is used as a searching net to evaluate the performance of the recognizer. A 92.55% word accuracy is achieved on a speaker dependent case. Furthermore, we construct a continuous-speech real-time demonstration system based on the vocabulary-independent RCD models for a specific application domain of automated hospital appointment arrangement, where Mandarin/Taiwanese mixed speech is very possible to happen.

Full Paper

Bibliographic reference.  Lyu, Ren-yuan / Chen, Chi-yu / Chiang, Yuang-chin / Liang, Min-shung (2000): "A bi-lingual Mandarin/taiwanese (min-nan), large vocabulary, continuous speech recognition system based on the tong-yong phonetic alphabet (TYPA)", In ICSLP-2000, vol.2, 226-229.