基于小波变换的语音实时去噪算法及其DSP实现

Real-time De-noising Algorithm based on Wavelet Transform and Its DSP Implementation

介绍了一种在小波域中去噪并在DSP上实现的语音去噪方法。采用小波变换自适应阈值去噪算法将分解后的小波系数中的噪声进行自适应阈值去噪,并将算法利用DSP硬件平台实现。实验结果证明了基于小波变换的语音去噪算法在DSP中实时实现的有效性以及良好的去噪效果。

This paper introduces a denoising method of denoising in wavelet domain and in the realization of the DSP speech.The adaptive threshold denoising algorithm based on wavelet transform is used to denoise the noise in the decomposed wavelet coefficients,and the algorithm is implemented on the DSP hardware platform.Experimental results show that the algorithm based on wavelet transform is effective in real-time implementation and good denoising effect in DSP.