Summary

JS80P is a free and open source, MIDI-driven VST synthesizer plugin for Linux, Windows, and macOS. It features versatile synthesis options and performance-friendly design with extensive modulation and effects.

Features

• Supports polyphonic, monophonic, and split keyboard modes with 64 notes polyphony.
• Includes two oscillators with 14 waveforms plus a sub-harmonic sine and noise generator.
• Offers multiple synthesis methods: subtractive, additive, pulse-width modulation (PWM), frequency modulation (FM), phase modulation (PM), and amplitude modulation (AM).
• Extensive filter types for each oscillator: low-pass, high-pass, band-pass, notch, bell, low-shelf, and high-shelf.
• Built-in effects such as distortions, tape simulation with saturation and wow/flutter, chorus, stereo echo with advanced routing, and stereo reverb.
• 12 customizable DAHDSR envelope generators and 8 LFOs with amplitude envelope and polyphony support.
• MIDI Polyphonic Expression (MPE) and MTS-ESP microtuning support.
• Analog imperfection emulation with adjustable oscillator pitch inaccuracy and instability, plus filter and envelope imperfection.
• Powerful macro controls and freely assignable MIDI controllers including sustain pedal override and aftertouch options.
• Ability to route external audio into the effects chain in compatible hosts.
• Random preset generator and a variety of built-in expressive presets.

Distribution and Licensing

JS80P is distributed as a VST® plugin supporting Windows, Linux, and macOS. It is free and open source software licensed under the GNU General Public License Version 3. The source code and releases are available on GitHub.