clear;
M=2048;
y1=wavread('voix1.wav',[1 M]);
ty= 0:length(y1(1,:))-1;
xset("window",1)
plot2d(ty,y1(1,:));
z1=fft(y1(1,:),-1);
xset("window",2)
plot2d(ty,abs(z1));
y2=wavread('voix2.wav',[1 M]);
ty= 0:length(y2(1,:))-1;
xset("window",3)
plot2d(ty,y2(1,:));
z2=fft(y2(1,:),-1);
xset("window",4)
plot2d(ty,abs(z2));