语音信号的滤波处理matlab源码_ccsss22的专栏-CSDN博客

AN2=0.6;    %   All Pass Numerator constant Stage 2 level = 0.7; AD2=390;    %   All Pass Denuminator constant Stage 2 %   All Pass stage 1 APden=[1,zeros(1,R5-1),AN1]; %All Pass Denumator AllPass1 = filter(APnum,APden,combfilt); num=[AN2,zeros(1,R6-1),1]; den=[1,zeros(1,R6-1),AN2]; %   All Pass stage 2 %   Add the echoes into the original signal and scale down level of echo REVERB = x + level * 3*AllPass2;  soundsc(REVERB,Fs); subplot(325);plot(REVERB(1:30000)); xlabel('Time Variant'); ylabel('signal level'); title('Filtered Signal + REVERB'); XF = fft(REVERB,Fs);