ISCA Archive ICSLP 1992
ISCA Archive ICSLP 1992

A real-time speaker-independent continuous speech recognition system based on demi-syllable units

Shinji Koga, Ryosuke Isotani, Satoshi Tsukada, Kazunaga Yoshida, Kaichiro Hatazaki, Takao Watanabe

This paper describes a real-time speaker-independent continuous speech recognition system. In order to achieve speaker-independent continuous speech recognition with real-time response, demi-syllable speech units, a bundle search algorithm, and multi-processing techniques were used. The use of demisyllables allows all transitions between phonemes to be represented, thus improving the recognition accuracy. Bundle search is a frame synchronous technique used with Viterbi search to reduce the computational load needed to search the finite state grammar network used. The search process is divided into three pipelined stages : frame-level likelihood calculation, word-level search and sentence level network search. Each of these three pipelined stages is further split into several sub-processes. These processes are run in parallel on a multi-processor machine. Real-time performance was achieved in the evaluation experiments using a 500 word vocabulary. 83.0% sentence accuracy and 95.5% word recognition accuracy were achieved.


doi: 10.21437/ICSLP.1992-185

Cite as: Koga, S., Isotani, R., Tsukada, S., Yoshida, K., Hatazaki, K., Watanabe, T. (1992) A real-time speaker-independent continuous speech recognition system based on demi-syllable units. Proc. 2nd International Conference on Spoken Language Processing (ICSLP 1992), 1483-1486, doi: 10.21437/ICSLP.1992-185

@inproceedings{koga92_icslp,
  author={Shinji Koga and Ryosuke Isotani and Satoshi Tsukada and Kazunaga Yoshida and Kaichiro Hatazaki and Takao Watanabe},
  title={{A real-time speaker-independent continuous speech recognition system based on demi-syllable units}},
  year=1992,
  booktitle={Proc. 2nd International Conference on Spoken Language Processing (ICSLP 1992)},
  pages={1483--1486},
  doi={10.21437/ICSLP.1992-185}
}