PHASEX is an experimental JACK audio / ALSA MIDI softsynth for Linux
with a synth engine built around flexible phase modulation and
flexible oscillator/LFO sourcing. Modulations include AM, FM, offset
PM, and wave select. PHASEX comes equipped with a 12db/octave filter
with two distortion curves, a stereo crossover delay and chorus with
phaser, ADSR envelopes for amplifier and filter, realtime audio input
processing capabilities, and more.