effeut.zip_wav音频_音频

filename='Windows XP 电话拨入声.wav'; % Fs=12000; % 12KHz [y,Fs] = wavread(filename); gain = 24; y = gain * y; % 提高音量 wavplay(y,Fs ); % gong signal begins playing. subplot(2,1,1),plot(y(1 : fix(end/8)));title('原声') x=y; b=[ 0.09393423303564 -0.16284746686676 0.09332757238627 0.00324603545919 0.00519151173625 -0.04572863261770 0.03284820495831 -0.03020744855625 0.07211329425296 -0.07532762770276 0.02501463773315 -0.00022433000271 0.01859168007976 -0.03693965320228 0.03418269061323 -0.03635041949239 0.03574972598228 -0.02828369831337 0.02405308778505 -0.01437328116435 0.00035267234096 0.00150611385749 0.00750470750932 -0.01364292812061 0.00636513782032 ]; a=[ 1.0 -0.60321120349729 -0.43642949988157 0.57020912710538 0.05095591874974 -0.38485083647156 -0.00071267967606 -0.09847674399986 0.27096900161101 0.14497007369623 -0.18209318108990 0.25538642287687 -0.12176700888090 -0.21574310691803 0.16446450584643 0.00363859185489 -0.10186630200717 -0.09872384968285 0.11675452664540 0.11820736487318 -0.19973332096141 0.15334567116746 -0.09076585614211 0.02006147771053 -0.00680573138016 ]; y=24.0*filter(b,a,x); % 音量提高点 wavplay(y,Fs ); % gong signal begins playing. subplot(2,1,2),plot(y(1:fix(end/8)));title('均衡后')