ZynAddSubFX
ZynAddSubFX is a fully featured musical software synthesizer for Linux, MacOS, BSD, and Windows. ZynAddSubFX exposes a wide array of synthesis parameters to make it flexible tool for sound design and a fun experience for playing instruments.
Features
- Polyphonic with support for legato and mono playing modes.
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Three synthesizer engines:
- Additive Synthesis for classic synth sounds composed of a variety of voices with powerful modulation. This exposes modulators ranging from LFOs and envelopes to oscillator modulators for FM, PM, and AM.
- Subtractive Synthesis for creating variable bandwidth harmonics from filtered white noise.
- PAD synthesis for creating beautiful pads and other instruments.
- Powerful waveform generator with up to 128 sine/non-sine harmonics.
- A variety of filters including analogue modeled filters, formant filters, and state variable filters.
- Envelopes can have ADSR (or ASR, etc..) modes or can be free modes (with any shape).
- Effects for Reverb, Echo, Chorus/Flange, Phasing, Wave-shaping, Equalizing, Dynamic Filtering with flexible signal routing.
- Instruments can be organized in kits, which allows you to make drum kits or layered instruments; this makes possible to use more than one instrument for a single part. It is possible to choose what items from the kit should be processed by the Part’s effects.
- Randomness settings to create subtle differences in each sound to help create that familiar analogue warmth.
- Microtonal capabilities with any scale, up to 128 notes per octave, and key mapping.
- Extensive MIDI/Audio driver support including JACK, ALSA, OSS, and PortAudio.
- Session Management Support via LASH/NSM.
- Plugin Support via DSSI/LV2/VST.
- Over 1100 high quality instruments included.

Software type
ALSA
JACK
PulseAudio
LV2 plugin
VST2 plugin
VST3 plugin
Platform
GNU/Linux
BSD
macOS
Windows
Software features
NSM
MIDI
Virtual keyboard
Synthesis
Audio input
Audio mixing
Audio FX
Software language
C++
License
GPL-2
Developer(s)
ZynAddSubFX development team
Announcements