[PD] Pd-list Digest, Vol 110, Issue 33

Bart Brouns bart at magnetophon.nl
Fri May 23 02:11:16 CEST 2014


That neuro thing sounds very interesting!

Concerning antescofo: I've only gotten it to work on predefined music, and I'm getting the impression you want a general purpose tempo tracker, right?

I finally made my own, heavily based on an existing patch, and my version also tracks phase:


It's far from perfect, but since you can help it along with manual tap tempo, I think it has an edge on the other trackers I've tried.

The forum post is about dropouts, but those are caused by the chord prediction part of the patch, which you don't need. 

Best of luck,


On 22 mei 2014, at 12:00, pd-list-request at lists.iem.at wrote:

> 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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