A MIDI driven, performance oriented, versatile, free and open source synthesizer VST plugin for Linux and Windows
JS80P has two oscillators (and a sub-harmonic sine), and a lot of filters, effects, envelopes, LFOs, and powerful macros to shape your sound with subtractive, additive, FM, PM, and AM synthesis, complete with 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 will either retrigger or smoothly glide to the next note, depending on the portamento length setting.
Polyphonic and monophonic hold modes to keep notes ringing without a sustain pedal.
2 oscillators with 10 waveforms:
sine,
sawtooth,
soft sawtooth,
inverse sawtooth,
soft inverse sawtooth,
triangle,
soft triangle,
square,
soft square,
custom.
2 filters for each oscillator, 7 filter types:
low-pass,
high-pass,
band-pass,
notch,
bell (peaking),
low-shelf,
high-shelf.
Sub-harmonic sine wave for oscillator 1, distortion for oscillator 2.
Adjustable oscillator pitch inaccuracy and instability, for analog-like liveliness and warmth.
Set the same inaccuracy or instability level for the two oscillators to synchronize their imperfections within a single polyphonic voice, so that the effect will only occur between multiple voices, but not between the oscillators within a single voice.
Microtuning support via the MTS-ESP tuning protocol by ODDSound.
Portamento.
Wavefolder.
Split keyboard.
Amplitude modulation.
Frequency modulation.
Phase modulation.
Built-in effects:
various distortions,
2 more filters,
chorus,
stereo echo (with distortion and side-chaining),
stereo reverb (with distortion and side-chaining),
volume controls at various points of the signal chain.
12 envelopes with customizable shapes.
8 low-frequency oscillators (LFO) with optional amount envelope and polyphony.
Filter and envelope imperfection settings for analog-like feel.
MIDI controllers and macros.
Channel pressure (aftertouch).
Optionally with semi-polyphonic aftertouch emulation (even with MIDI keyboards that don’t have polyphonic aftertouch):
last pressed key,
oldest pressed key,
lowest pressed key,
or highest pressed key.
MIDI learn.
Logarithmic or linear scale filter cutoff frequencies.
Tempo synchronization for envelopes, LFOs, and effects.
Use the peak level at various points of the signal chain to control parameters:
oscillator 1 output,
oscillator 2 output,
volume control 1 input,
volume control 2 input,
volume control 3 input.
Route external audio into the effects chain of JS80P (in host applications which support it).
Override the primary function of the sustain pedal, and use it as a toggle switch for various parameters and macros.
Documentation:
https://attilammagyar.github.io/js80p/#readme
