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A Time Reduction Algorithm Using Vowel Classification for Large-Vocabulary Speech Recognition

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Authors
Yong-Joo, Jung; Chong Kwan, Un
Issue Date
1991
Publisher
서울대학교 언어교육원
Citation
어학연구, Vol.27 No.2, pp. 219-227
Abstract
In this paper, a time reduction algorithm for large-vocabulary speech recognition has been studied. To reduce the recognition time, vowel was classified according to its formant information based on linear prediction analysis. Formant extraction was done in the assumed vowel regions. To segment vowel regions we used acoustic features such as energy, zero crossing rate and filter bank outputs. Computer simulation was done to test the time reduction algorithm with 1160 words. Simulation results show that the recognition rate is about 97% and the time for recognition can be reduced by 80% as compared to the case without the reduction algorithm.
ISSN
0254-4474
Language
English
URI
https://hdl.handle.net/10371/85917
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Language Education Institute (언어교육원)Language Research (어학연구)Language Research (어학연구) Volume 27 Number 1/4 (1991)
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