Calculate sine wave frequency using FFT

Hello,

I need to calculate a sine wave frequency using FFT, can someone please help me through the process?

Additionally, I also need to add noise to the signal and calculate the frequency of the new wave.

Any help would be appreciated.

Thanks.

Answer 1

[Greg Heath]

What, exactly do you not understand about the documentation example?

 doc fft

Thank you for formally accepting my answer

Greg

[Ori]

how to get tha calculated frequency to a variable.