Triangle (It is not a freeware, until proved otherwise)

for generated Delaunay triangulations

traGtor

for converting any type of video, picture, audio.

Ibniz

IBNIZ is a virtual machine designed for extremely compact low-level audiovisual programs.

SuperCollider

Supercollider is an environment and programming language for real-time audio synthesis and algorithmic composition.

Pure Data

Pure Data is a visual programming language. It is possible to create and manipulate video, graphics, images in realtime with extensive possibilities for interactivity with audio & external sensors.

Lmms

Producing music with your computer using instruments, Samples and plugin.

Sndpeek

Sndpeek is a real-time audio visualization software.

Jashaka

Jashaka est un logicel d'édition vidéo et effets spéciaux.

TexTuring

Lmms

Producing music with your computer using instruments, Samples and plugin.

MPlayer

Mplayer is the swiss army knife of video players

Substrack Studio

Substrack Studio is a onligne musical programme with algorithms .

OpenSCAD

The short description describes the project briefly, it should not be longer than one or two sentences.