Assorted Tools, Free

Save your BOSS pedal settings and import sounds

Interleaves a file with any number of other files

Check MIDI and digital audio record and playback functions

Generate waveforms and either send them to a sound card or a file

FFT your sound in one single gigantic analysis.

Replacement Windows Sound Mixer applet with hot keys.

Seven programs for processing mono and stereo wav-files from the command-line

Multi-MIDI-channel module oriented to classic orchestra instruments. [VST]

Hack to save and reload a mixer configuration (Perl)

The theory behind binaural beats is that if you apply slightly different frequency sine waves to each ear, a beating affect is created in the brain itself, due to the brain's internal wiring.

Pro audio reference database.

Collection of 7 Asian Instruments (Pipa, Pipa tremolo, Luan, Guzhen, Erhu, Ban di, Percussion kit). [VST]

QjackCtl is a simple Qt application to control the JACK sound server daemon, specific for the Linux Audio Desktop infrastructure

100% certified mad audio thingie.

Rename multiple files with change (very powerful), search/replace, insert, trim and many other batch operations.