Just wanted to thank everyone for the replies, this was very helpful!
Louigi Verona
On Thu, Oct 17, 2019 at 9:38 AM David Moreno Montero <dmoreno(a)coralbits.com>
wrote:
  Hi,
 for a project I used MiniBPM (
https://breakfastquay.com/minibpm/) and it
 gave me very good results for beat detection. It's GPL, or small payment
 for commercial use.
 As an alternative I used SoundTouch (
 
https://gitlab.com/soundtouch/soundtouch/) that also give pitch and tempo
 control, and although the pitch/tempo algorithms are good, the BPM
 detection is way worse than MiniBPM. This one is LGPL.
 Regards,
 David.
 On Thu, 17 Oct 2019 at 05:52, michael noble <looplog(a)gmail.com> wrote:
    As a case in point, Mixxx uses Vamp:
 
https://www.mixxx.org/wiki/doku.php/developer_guide_analysers
 On Thu, Oct 17, 2019 at 12:47 PM michael noble <looplog(a)gmail.com> wrote:
  You might also look at Aubio:
https://github.com/aubio/aubio
 BTW, Vamp has an SDK, so it should be suited to your needs. See here:
 
https://vamp-plugins.org/develop.html
 On Wed, Oct 16, 2019 at 7:58 PM Louigi Verona <louigi.verona(a)gmail.com>
 wrote:
  Plugins are good, but I am more interested in
libraries that people can
 use for their projects.
 bpm-tools look like what I mean, but they are so old: last release was
 in 2013. Are there any other open source libraries people use?
 Louigi Verona
 
https://louigiverona.com/
 On Mon, Oct 14, 2019 at 3:06 PM Robin Gareus <robin(a)gareus.org> wrote:
> On 10/14/19 10:36 AM, Louigi Verona wrote:
> > Hey everyone!
> >
> > What are the bpm and key detection libraries people use for open
> source
> > projects? And how good are they?
>
> 
https://vamp-plugins.org/download.html are amazing.
>
> You can test for yourself using sonic-visualizer.
>
>
> Cheers!
> robin
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