How to create a sine wave over given no of samples

Hi.

I am trying to create a sine wave with an arbitrary frequency over 2048 samples for an audio sample, but since I'm new to Matlab and my math is a little bit rusty I simply can't get it to work. I'm sure there's some simple way to generate this buy I've been trying to search the net but don't really know how to formulate my searches so that I find an answer for my specific case. I would be really thankful if you guys could help out.

So my question is how to create an array of 2048 elements that represent a sine wave where the frequency is a natural number. Could be 1 cycle or any other.

Thanks.

/Leif.

Answer 1

[Stephen23]

smp = 2048;
cyc = 2.5;
X = linspace(0,cyc*2*pi,smp);
Y = sin(X);
plot(X,Y)

[Leif Bohné]

Hi! Thanks, it seems to be what I'm looking for.