a=1;
b=2;
c=3;
d=a+b+c;
audioread('mw1.wav');


[y,fs,Nb]=wavread('mw1.wav');

y=y(1:10*fs);
t=[1:1:10*fs]/fs;

plot(t,y);ylabel('ilosc probek');xlabel('time');title('przebieg sygnalu');