[ardour-dev] Project proposal for Ardour

Pau Arumi parumi at iua.upf.edu
Tue May 8 02:04:13 PDT 2007

En/na Davide Girlando ha escrit:
> Hello everyone, I've been a Summer of Code applicant, Paul might 
> remember my application. It was a pitch-to-MIDI precision conversion and 
> a MIDI-based auto-tuning, aimed at getting the tune off an audio part, 
> might it be vocal or instrumental, and correct it by moving MIDI notes 
> and pitch-shifting commands (something like what Melodyne does, but 
> inside Ardour and with MIDI) or with parametrized commands (maximum 
> pitch offset, etc.). Paul commented it was good but beat detection had 
> priority (and then neither was done as a SoC project, maybe because of 
> the lack of available projects). I would like to carry on this project 
> nevertheless, and I already got it accepted as two University projects 
> (the pitch-tracking and auto-tuning parts separately). I'll have tutors 
> from my University helping me understand which are the best algorithms 
> and how to implement them; 

You might also be interested in existing free-software projects
which have implementations of pitch-tracking. For example aubio
(which is also wrapped as a vamp plugin), and clam:


In clam we have a user interface program called Voice2MIDI
And now one of the Google SoC projects is heading towards
improving it and porting it to real-time among other things.
You can also have a look at clam's pitch shift and pitch
discretization transformations. Feel free to ask questions in
the clam lists.


> me all the directions to make it compatible with Ardour (libraries 
> needed, objects and methods to be used, etc.). Keep in mind that I'm new 
> to C++, although I'm a strong believer that the best way to learn things 
> is by doing them.
> Thanks to anyone replying to this.
> Davide
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