% file: task11.m
load handel.mat; % binary file handel.mat contains
                 % two variables
whos
t = [1 : length(y)]/Fs;  % time-axis
figure(1); clf;  % open/activate Figure No 1.
plot(t, y);
grid on; xlabel('time (s)'); 
title('Händel Hallelujah');

soundsc(y, Fs);
