Attila Magyar released Free and Open Source Synthesizer JS80P

JS80P is a versatile, free, and open source synthesizer VST plugin designed for Linux and Windows. It features two oscillators, a sub-harmonic sine, and a wide range of filters, effects, envelopes, LFOs, and powerful macros for shaping sound with subtractive, additive, FM, PM, and AM synthesis. The plugin also offers polyphonic, monophonic, and split keyboard modes, MTS-ESP tuning support, and analog imperfection emulation.

Features

• 64 notes polyphony
• Last-note priority monophonic mode
• Legato playing with retrigger or smooth glide
• Polyphonic and monophonic hold modes
• 2 oscillators with 10 waveforms
• 2 filters for each oscillator with 7 filter types
• Sub-harmonic sine wave for oscillator 1, distortion for oscillator 2
• Adjustable oscillator pitch inaccuracy and instability
• Microtuning support via MTS-ESP tuning protocol
• Portamento, wavefolder, split keyboard, amplitude modulation, frequency modulation, phase modulation
• Built-in effects including various distortions, chorus, stereo echo, stereo reverb, and volume controls
• 12 envelopes with customizable shapes
• 8 low-frequency oscillators (LFO) with optional amount envelope and polyphony
• MIDI controllers and macros
• Channel pressure (aftertouch) with optional semi-polyphonic aftertouch emulation
• MIDI learn, logarithmic or linear scale filter cutoff frequencies, tempo synchronization for envelopes, LFOs, and effects
• Route external audio into the effects chain of JS80P
• Override the primary function of the sustain pedal

More information and download here: Attila Magyar | JS80P