Nyquist theorem in matlab

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Im trying to make a small script in matlab, so i can hear both the analog and digital sin waves , the idea is to be able to change Tm that is the sampling rate, by changing Tm i should be able to hear the digital sound at the sampling frequency i chooose

However im stuck with this the stem function, since i havent been able to change the sample rate in the stem function, hopefully someone here can lend me a hand

clf
t=0:1:17.7
y=sin(2*pi*0.06*t)          %l von Vp de 2.5v

plot(t,y)                   %Entry signal
hold on
plot(t,y,'ko')              %Output graph 
stem(t,y)
hold off

n=[0:1:10000]               %Duration of tone

ftono=440                   %sound frequency
fm=8000                     %frecuency sample rate 
Tm=1/fm                     %sampling period 

A=1                  

x=A*sin(2*pi*ftono*Tm*n)    %Sin wave using sam,pling period 

sound(x,fm)                 %Analogic sound 

asked 2 mins ago

GoatZero

106

Nyquist theorem in matlab