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

Florent THIERY fthiery at gmail.com
Mon Sep 24 12:05:22 CEST 2007


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.



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