fs = 8192;
f = 440;
[xx,tt] = makeSinusoid(0.5, f, 0, 1, fs);

plot(tt(1:500), xx(1:500));
sound(xx,fs)

pause

xx2 = makeSinusoid(0.5, 2*f, 0, 1, fs);
xx3 = makeSinusoid(0.5, 4*f, 0, 1, fs);

sound([xx xx2 xx3], fs)

pause

sound((xx+xx2+xx3)/3, fs)
