Ok, so I'm kind of moving forward with implementing the STFT. I realise that I was taking the entire FFT and not the first half.
The problem that I'm having now is, understanding how to get the Freq bins, what calculation should I use? For example, I have been using this formula:
(10 * log10(sqrt(v[i][j].re * v[i][j].re + v[i][j].im * v[i][j].im)));
Which, I realise that this is for decibels. Currently, my graph looks like the following:
I know this makes sense to me now, this is finally starting to come together!
Would this algorithm work?:
I take the magnitude of each of the elements inside the bin `mags = (re * re + im + im) I then find the maximum index of the bin, multiply it by the Fs and divide by the bin size?
If I did this, however, would this only give me
1 result for each block?