I've followed a basic tutorial on FFTs and trying to get my head around what's going on here. As I understand it fourier transform converts from time domain to frequency domain. So in a hypothetical waveform the FT will show the relative presence of each frequency in the waveform. That is my understanding but clearly I am missing something very simple because I can't get my head around this simple example..
The 2 charts below show the waveform (right) and FT representation (left) (source: 1).
As I can see it the waveform (right) has a high occurence of the amplitude at 2 so I would expect a peak at 2 Hz on the FT (left). But instead the peak is at 1.
What am I missing? Thanks in advance
