I am developing a flash guitar, and the only apparent method to discover the frequency of the mic's data looks to be using FFT. Nevertheless, after something like 30 hours of research I could not discover the best way to do that. Should I use Harmonic Product Spectrum (HPS), Cepstrum or Maximum Likelihood? The tuner will have to show frequencys from 25 to 3000Hz.
Also, if someone knows about some open source code ready to find the fundamental frequency, please tell me. I can translate it to ActionScript.
Thanks!
I try to reply with my basic remembrance: when ytou have the FFT of your signal, the fundamental isn't te one with the maximum amplitude ?