This site was founded to file and preserve DSP (Digital Signal Processing) audio software and resources. Programs listed in the directory provide tools for composition, editing, synthesis and complex processing of audio, principally outside of the typical realm.

Many of the listed applications were written under PowerPC architecture, and therefore will not function under modern operating systems. Some programs may be successfully emulated in a virtual machine; for best results, consider acquiring a Macintosh G3/G4 series computer. Most of the programs listed are shareware, freeware or 'too-old-to-care' with regard to licensing.