Letter: S
- slime - Superior Lisp Interaction Mode for Emacs
- snd - A sound editor (15.0, "12/10/2014")
- sndobj - Object-oriented audio processing library
- sndpeek - 3D animated time domain, fft, waterfall, etc display
- soundfontcombi - Midi router
- specimen - A midi controlled audio sampler
- supercollider - Object oriented programming environment for real-time audio and video processing
- supercollider-bbcut2 - Beat tracking of audio streams
- supercollider-midifile - MIDI file reader for SuperCollider
- supercollider-quarks - Local Quarks repository for SuperCollider
- supercollider-redclasses - Fredrik Olofsson Red SuperCollider classes
- supercollider-sc3-plugins - Collection of SuperCollider plugins
- supercollider-world - SuperCollider world packages
- synthclone - Synthesizer-cloning software