MSS is a real time synthesizer that can be played either via the builtin keyboard (a GUI widget that is played via the mouse), or via an external MIDI keyboard. The "real time" means that any adjustments you do while playing (e.g change of filter settings) are immediately audible.
nekobee is a DSSI soft synth plugin that emulates the sound of the TB-303 Bassline.
Octavian is a realtime software synthesizer for the GNULinux operating system. Its design is like analog modular synthesizers, so it can be used both as a synth and as an effect processor. Modular tasks separation allows to extend features in a simple way. Modules can be connected between each other via channels. Octavian provides two types of channels: audio and control (MIDI), so they can be freely converted to each other (e.g. MIDI can be converted to "voltage" in order to control modules that support voltage-controlling and vice versa).
prodatum is a simple yet powerful and cross-platform preset editor (SysEx-editor) for the E-MU Proteus 2000 synthesizer family. It supports the following sound modules: Vintage Pro, Audity 2000, Proteus 2000, Proteus 1000, B-3, XL-1, Virtuoso 2000, Mo'Phatt, B-3 Turbo, XL-1 Turbo, Mo'Phatt Turbo, Planet Earth, Planet Earth Turbo, Proteus 2500, and Orbit 3. Its supported keyboards are Vintage Keys, PK-6, XK-6, MK-6, and Ensoniq Halo. It supports the PX-7, XL-7, and MP-7 command stations.
The Psychosynth project aims to create an interactive, modular soft-synth inspired by the ideas of the Reactable. It provides a clean object oriented API to allow the creation of new innovative interfaces for the synthesizer and a 3D simulator of a Reactable-alike device with support for collaborative music creation over the network. Read more
PySynth takes a list of the notes in a song to create a WAV file with synthesized audio.
QSynth is a fluidsynth GUI front-end application written in C++ around the Qt3 toolkit using Qt Designer. Eventually it may evolve into a softsynth management application allowing the user to control and manage a variety of command line softsynth but for the moment it wraps the excellent FluidSynth. FluidSynth is a command line software synthesiser based on the Soundfont specification.
RTSynth is a midi event triggered real time software synthesizer. RTSynth supports a polyphonic string synth, a monophonic flute synth and a set of audio effects.
sloop.splitter is a realtime sound effect program. It samples sounds from any source and dissects them.
SMDITools is a set of five command-line programs to exchange samples with an SMDI compatible sampler.
SooperLooper is a live looping sampler capable of immediate loop recording, overdubbing, multiplying, reversing and more. It allows for multiple simultaneous multi-channel loops limited only by your computer's available memory. The feature-set and operation was inspired by the impressive Gibson Echoplex Digital Pro (EDP). When used with a low-latency audio configuration SooperLooper is capable of truly realtime live performance looping.
Sorcer is a polyphonic wavetable synth LV2 plugin. Its sonic fingerprint is one of harsh modulated sub-bass driven walls of sound.
Soundtank hosts LADSPA plugins in "realtime objects" which embody the structure of the audio signal flow. RTObjects can be controlled in a completely customizeable fashion using MIDI events sent through the ALSA sequencer interface. Soundtank outputs audio through ALSA or JACK.
SoundTracker is a music tracking tool for Unix / X11 similar in design to the DOS program FastTracker and the Amiga legend ProTracker. Samples can be lined up on tracks and patterns which are then arranged to a song. Supported module formats are XM and MOD; the player code is the one from OpenCP.
Spiral Synth is a physically modelled analogue synthesizer that is capable of creating the kind of sounds made by hardware analogue synths, the noises used in electronic music.
SpiralLoops is an experimental loop based sampler for Linux or FreeBSD. The idea of SpiralLoops is to provide a simple, visual tool for looping and layering of sounds; which can be sourced from either wav files on disk, or from sound generating plugins.
SpiralSynth Modular is an object orientated music studio with an emphasis on live use. You can use it in a fairly straight forward way to make tracks with, or get very experimental. Audio or control data can be freely passed between the plugins. Data can also be fed back on itself for chaotic effects. SSM supports LADSPA plugins, which you can use in the same way as any of the native plugins. The JACK audio server is also supported.
Square Root is a monophonic synth. It is different from most synths in the way that the lowest note played drives a wave and the highest note controls the bandpass filter that is applied to the wave.
Syncotron Bathysphere Sound Suite
Syncotron Bathysphere Sound Suite consists of: 1) the samplomatic: gathers sounds from environs; frequency spectrum analasis; write wav samples 2) the syncotron: autonomous sequencer plays audio stream; listens on network for commands 3) syncotron client: curses-based UI for talking to the syncotron.
terminatorX is a realtime audio synthesizer that allows you to "scratch" on digitally sampled audio data (*.wav, *.au, *.mp3, etc.) just like you might have heard hiphop-DJ's scratch on vinyl records. Read more
tk3MU is a graphical interface written in Python/Tkinter for the Roland TB303 emulator called 3MU.
UltraMaster Juno-6 was a faithful virtual reproduction of a Roland Juno-6 Polyphonic Synthesizer.
Vee One Suite
Vee One Suite is a synthv1 polyphonic synthesizer, samplv1 polyphonic sampler, and drummkv1 drum kit sampler.
wcnt is a not-real-time modular audio synthesis, sequencer, and sampler, written in C++. wcnt reads a plain text file written in wcnt's 'near english synth definition language' and may then produce audio as 16 bit stereo WAV files. It is designed for people who want to make sequences of complex layers of synthesis and sampling but do not have a computer powerful enough to do so in real-time.
Xsynth is a real-time software musical synthesizer.