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

Volume

3

fYear

2010

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICSPS.2010.5555858

Filename

5555858