ISSN 1002-1027  CN 11-2952/G2

Acta scientiarum naturalium Universitatis Pekinensis

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A Study on Noisy Speech Recognition (Linear Predictive Coding Prediction Error)

FENG Chenglin, WU Shuzhen   

  1. Department of Electronics, Peking University, Beijing, 100871
  • Received:1999-10-21 Online:2000-09-20 Published:2000-09-20

Abstract: This paper presents a new method for speech recognition in stationary noise. By using the LPC coefficients of noise to predict all the speech signal, the method gets the LPC prediction error(LPCPE) sequence. Then use it to substitute the speech sequence to detect the speech terminal、extract the speech features and to recognize in a suitable way. Isolated words recognition experiment based on DTW shows: this method is o.k. in automatic detection of speech terminal and extraction of speech feature;and achieves very satisfying recognition rate.