generation of sound wave

how can i generate a sound wave through matlab?

[Maaz Rao]

Answer 1

[Star Strider]

Fs = 4.41E+4;
t = linspace(0, Fs*5, Fs*5);
f1 = 1E+3;
f2 = 1E+1;
s = sin(2*pi*f1*t/Fs) .* cos(2*pi*f2*t/(5*Fs));

sound(s, Fs)

Experiment to get the result you want.

[Maaz Rao]

actually i want a graph generated with many peaks and valleys

[Star Strider]

Adding a plot call to my previous code (and changing the modulating signal a bit):

Fs = 4.41E+4;
t = linspace(0, Fs*5, Fs*5);
f1 = 1E+3;
f2 = 1E+1;
s = sin(2*pi*f1*t/Fs) .* cos(2*pi*f2*t/(10*Fs));

sound(s, Fs)

figure
plot(t, s)
grid

Experiment to get the result you want.