Key Lab of Intelligent Computing and Signal Processing, Anhui University Hefei 230039 China;
School of Electronic Science and Technology, Anhui University Hefei 230039 China;
Key Lab of Intelligent Computing and Signal Processing, Anhui University Hefei 230039 China;
School of Electronic Science and Technology, Anhui University Hefei 230039 China;
School of Electronic Science and Technology, Anhui University Hefei 230039 China;
stationary wavelet transform; speech enhancement; de-noising; SNR;