小波阈值语音消噪clc;clear;fs=wavread('G:\c12345.wav');y=fs(1000:12000);N=length(y);figure(1);subplot(111);plot(y);ylabel('幅值 A');title('原始信号');s=awgn(y,20,'measured');%加入高斯白噪声figure(2);plot(s);ylabel('幅值 A');titl

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