New answers tagged pitch
4
The f[i] * i together determine the phase and frequency at every i so sine wave is only rendered correctly if there is no speed change, so the algorithm must be changed to allow for continuous time i and any change in frequency must not cause a phase jump.
So try a phase accumulator approach, where phase for each i is incremented as required by the frequency....
0
You should do it all in the time domain. I wouldn't bother with any FFT. Not even to get autocorrelation.
I have a couple of answers regarding using Average Squared Difference Function, which is a variation of the AMDF method. ASDF can be inverted to get a good autocorrelation function and then the issue is doing good peak-picking and tracking your pitch.
...
0
A zero-padded FFT is not the best method for accurately estimating musical pitch in (near)real-time. I suggest researching other pitch detection/estimation algorithms (lots of literature and research papers), such as interpolated autocorrelation, AMDF, YAAPT, cepstrum, harmonic product, phase vocoder, and etc., and see if one of those algorithms better ...
Top 50 recent answers are included
