[gst-devel] Audio pipeline: how to detect beats, BPM counter

AndréRüdiger andre.ruediger at gmail.com
Tue Sep 25 09:54:46 CEST 2007

Florent THIERY <fthiery <at> gmail.com> writes:

> Hi,
> I'm looking for hints about implementing a gstreamer-based BPM counter
> and beat detector (from alsasrc).
> The first approach i though of would be using frequency filters
> (low-band filter for beats), but then how to get a numerical value of
> the volume in output  (and emit a corresponding gobject bus signal
> when threshold is passed) ?
> I'd appreciate any hints towards pre-investigated beat detection /
> sound analysis tips and tricks.
> Thanks
> Florent


I once came across BPM detection in finalscratch [1]. Maybe it hepls.



[1] - http://finalscratch.sourceforge.net/BPM/index.html

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