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A Speech Enhancement Method Based on Signal Subspace and Hearing Masking Effect

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3 Author(s)
Jin Chensheng ; Coll. of Inf. Eng., Taiyuan Univ. of Technol., Taiyuan, China ; Zhang Xueying ; Jia Hairong

A speech enhancement method based on signal subspace and hearing masking effect is proposed. This method has following steps. Firstly, by subspace filter the noisy speech is enhanced. Then by Johnston hearing masking model the noise hearing masking threshold is gained. Finally, by a perceptual filter based on hearing masking effect the enhanced speech is smoothed, the clean speech is gained. Simulation results show that under the background of white and train noise, the SNR in this method is more excellent than in the traditional subspace method, meanwhile the musical noise after the enhancement is depressed effectively.

Published in:

Computer Science-Technology and Applications, 2009. IFCSTA '09. International Forum on  (Volume:3 )

Date of Conference:

25-27 Dec. 2009