Note: Currently Linux build doesn't display GUI due to some problem related to VSTGUI. For Linux, LV2 version is available at https://github.com/ryukau/LV2Plugins.

Note: I don't have mac so macOS build is not tested. If you find bug, please report it to https://github.com/ryukau/VSTPlugins.

TrapezoidSynth is a monophonic synthesizer equipped with two trapezoid oscillator which is piecewise function of PTR ramp function. In other words, it's just a fancy version of tri-pulse oscillator:

• Equipped with 2 trapezoid oscillator.
• Pitch drift with white noise for oscillator 1.
• Slope and pulse width controls for trapezoid shape.
• Phase modulation to oscillator 1. Feedback knob is just another phase modulation.
• Up to 8 order low-pass filter with saturation.
• Can be modulate filter cutoff with Oscillator 1 output.
• 2 ADSR envelopes for output gain and filter. Filter envelope can be used to modulate oscillator pitch in octave.
• 2 AD envelopes for various modulation.
• Retrigger control for all envelopes.
• 1 LFO for oscillator 1 and filter cutoff.
• 3 types of pitch slide. Always, only when sustain, reset to 0 Hz when first note on or last note off.
• Pitch slide time offset between oscillator 1 and 2.

LV2 version is used in demo video. Only difference between VST3 version and LV2 version is small details in GUI.

{See video at top of page}