Title :
A speech enhancement method based on wavelet packet and hearing masking effect
Author :
Jia, Hairong ; Zhang, Xueying ; Jin, Chensheng
Author_Institution :
Coll. of Inf. Eng., Taiyuan Univ. of Technol., Taiyuan, China
Abstract :
A speech enhancement method based on wavelet packet transform and hearing masking effect is proposed. This method has following steps. Firstly, by perceptual wavelet packet 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, the SNR and PESQ (Perceptual Evaluation of Speech Quality) in this method are more excellent than in the traditional wavelet packet method, meanwhile the musical noise after the enhancement is depressed effectively.
Keywords :
filtering theory; hearing; speech enhancement; speech intelligibility; wavelet transforms; Johnston hearing masking model; hearing masking effect; noisy speech; perceptual filter; speech enhancement method; wavelet packet transform; Auditory system; Noise measurement; Signal to noise ratio; Speech; Speech enhancement; Wavelet packets; hearing masking effect; perceptual filter; speech enhancement; wavelet packet;
Conference_Titel :
Signal Processing Systems (ICSPS), 2010 2nd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-6892-8
Electronic_ISBN :
978-1-4244-6893-5
DOI :
10.1109/ICSPS.2010.5555858
