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

[AndréRüdiger]

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
> 


Hi,

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

Cheers,

André

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