Multiresolution speech denoising based on wavelet transform
Yi Lin · Journal of Hefei University of Technology · 2000
In this paper, according to the theory of the multiresolution analysis, a speech enhancement method based on wavelet transform is put forward. By the multiresolution analysis of wavelet, noise speech is decomposed on different scales and the details of signal on a given frequency can be analyzed and processed. Thus the noise parts during the frequency intervals that decrease hearing quality mostly are reduced efficiently,and the SNR of denoised speech are increased.