PHASEX is an experimental MIDI softsynth for Linux/ALSA/JACK with a synth engine built around flexible phase modulation and flexible oscillator/LFO sources. Modulations include AM, FM, offset PM, and wave select. PHASEX comes equipped with multiple filter types and modes, a stereo crossover delay and chorus with phaser, ADSR envelopes for amplifier and filter, realtime audio input processing capabilities, and more.
I'm getting the following build errors, not sure what's going on: