A multimedia framework with a plugin based architecture for a variety of platforms including Linux, Windows and OSX. Site has downloads, developer resources, and links to applications using the framework.

The community developed version of this non-linear video editor. Documentation in several languages.

Describes the hardware, software and procedures needed to encode, play, mix and stream MP3 sound files.

MplayerXP is branch of the well-known mplayer which is based on a new, thread-based core. The new core provides better CPU utilization and improves performance of video decoding.

Art of Illusion is a 3D-modeller, renderer and raytracer. It is written in Java and runs on Linux, Solaris, OS X, and Windows.

The original developer of Cinelerra provides that video editor and other multimedia programs and utilities.

A Gtk-based sound events and sound theme manager for IceWM that does not require Gnome.

"An Oscilloscope On Acid" - Cthugha also lets you save certain visualizations to keystrokes which makes it a great tool for VJs.

GPL musical instrument tuner, originally conceived to tune electric guitars.

zgv, svgalib, and other Linux projects.