The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
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ARMA Filtering of Speech Features Using Energy Based Weights

에너지 기반 가중치를 이용한 음성 특징의 자동회귀 이동평균 필터링

  • Ban, Sung-Min (School of Electrical Engineering, Pusan National University) ;
  • Kim, Hyung-Soon (School of Electrical Engineering, Pusan National University)
  • Received : 2012.01.03
  • Accepted : 2012.02.06
  • Published : 2012.02.29
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Abstract

In this paper, a robust feature compensation method to deal with the environmental mismatch is proposed. The proposed method applies energy based weights according to the degree of speech presence to the Mean subtraction, Variance normalization, and ARMA filtering (MVA) processing. The weights are further smoothed by the moving average and maximum filters. The proposed feature compensation algorithm is evaluated on AURORA 2 task and distant talking experiment using the robot platform, and we obtain error rate reduction of 14.4 % and 44.9 % by using the proposed algorithm comparing with MVA processing on AURORA 2 task and distant talking experiment, respectively.

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References

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