[PD] a sort of a tempo tracker [pd challenge]

David Medine dmedine at ucsd.edu
Thu May 22 09:17:47 CEST 2014

Hey, Rama!

I just saw a very impressive thing by Ed Large (a neuro-science guy from 
UCONN). He models neuron oscillations with coupled nonlinear equations 
and with this he gets really nice spikes at the pulse tempo even with 
signals that don't have any onsets on the beat.

He said the model will be available in a month or so and the paper is 
still under review. The other thing is that there is a training layer 
(also neuro-model motivated) that you have to warm the thing up with, 
but my impression is that you only have to do this once and then it is 
ready to go. It's worth keeping an eye on for beat tracking solutions.

On 05/20/2014 07:32 PM, Rama Gottfried wrote:
> Hi Peiman,
> maybe check out antescofo~, there’s a pd version here: 
> http://forumnet.ircam.fr/shop/en/forumnet/44-antescofo.html
> I’m sure there are ways to patch this as well, but antescofo~ makes 
> use of some nice HMM tricks to anticipate when you’re going to play next.
> best,
> Rama
> On May 20, 2014, at 12:36 PM, peiman khosravi 
> <peimankhosravi at gmail.com <mailto:peimankhosravi at gmail.com>> wrote:
>> Hello everyone,
>> I am in serious need of advice! Here is what I need:
>> I need to compare a click-track with the input from a live midi 
>> sequence (played on a midi drum pad) and slow down or speed up the 
>> click track to match the tempo of the live midi input. So I need to 
>> generate a speed factor that will change dynamically to keep the 
>> click track in sync with the live sequence. The problem is that the 
>> two need to stay in phase so a simple tempo follower won't work.
>> It's more complex that I'd initially though it would be. Any 
>> suggestions?
>> Many thanks in advance
>> Peiman
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