General GPL Source Code and Projects

Source and personal projects

(2010) AP-Gen: Framework for audio plugins skeletons generation from abstractions and templates. Support for most common standards like VST, LADSPA, etc.
(2008) Improved version of the doxygen documentation extractor script of Py++. Note: included in the official Py++ distribution.
(2007) Simple python based irc bot. Used by Testfarm (continuous testing and monitoring tool).
(2006-present): Audio related source code.
Plugins, Scripts and Hardware.

Old/deprecated projects:

(2007) pjaiku: Crossplatform graphic client for Jaiku.com (microblogging). Written in Python using PyQt, XML-RPC and JSON.
(2003) 33 JAIIO: "Guitar with built-in tuner".
psms: send short mails easily.

Large group FLOSS projects

CLAM (C++ Library for Audio and Music)

(2007-present): Core-developer of CLAM. Framework for research and application development in the audio and music domain. It offers a conceptual metamodel as well as tools for the analysis, synthesis and processing of audio signals. One of its most relevant features is the availability of a visual building dataflow application that allows to develop rapid prototypes without writing code. The project started 7 years ago and, among other highlights, it won the ACM award to the Best Open Source Multimedia Software in 2006.

Some subprojects:

Serveral clam plugins: GuitarEffects, Filters, MIDI, etc.
CLAM Processing code generator based in templates.
pyCLAM: Pythons bindings for CLAM library. Interactive demo.
Sponsored by Google Summer of Code program:

(2008): Mentoring "MIDI Implementation for Network Editor" project. Some details here.
(2007): "Real-time spectral transformations in CLAM" mentored by Pau Arumí Albó. Details here.

Club de Audio de la FIUBA

(2009-present): Code repo at http://code.google.com/p/club-audio-fiuba.

Others

Musix GNU+Linux: Very user friendly and 100% free GNU/Linux distribution intended for music production, audio/video edition and graphic design.

Rakarrack: Guitar effects processor.