Well, actually he pointed the algorithm to me, as if he needed it, but checking what it is, seems like a more efficient FFT, suited for small processors, and he doesn't seem to need that. Maybe TimbreID is good for the job.
Anyway, there's a C code in this wikipedia, anyone curious could make an external :-) cheers 2012/12/9 Alexandre Torres Porres <por...@gmail.com> > Hi there, a friend is looking for a way to do DTMF recognition in Pd. I > know there is this Goertzel algorithm < > http://en.wikipedia.org/wiki/Goertzel_algorithm> and I wonder if anyone > has already implemented something about it in PD. > > Maybe some other option? > > thanks > Alex >
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