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&#39;t seem to need that. Maybe TimbreID is good for the job.<div>
<br></div><div>Anyway, there&#39;s a C code in this wikipedia, anyone curious could make an external :-)</div><div><br></div><div>cheers<br><br><div class="gmail_quote">2012/12/9 Alexandre Torres Porres <span dir="ltr">&lt;<a href="mailto:porres@gmail.com" target="_blank">porres@gmail.com</a>&gt;</span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi there, a friend is looking for a way to do DTMF recognition in Pd. I know there is this Goertzel algorithm &lt;<a href="http://en.wikipedia.org/wiki/Goertzel_algorithm" target="_blank">http://en.wikipedia.org/wiki/Goertzel_algorithm</a>&gt; and I wonder if anyone has already implemented something about it in PD.<div>

<br></div><div>Maybe some other option?<br><div><br></div><div>thanks</div><div>Alex</div></div>
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