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  • macOS build is experimental.
  • Linux build only works on Ubuntu 20.04. Build instruction is available for other distributions.



UltraSynth is an ordinary synthesizer except 64-fold oversampling that is the same one used in UltrasonicRingMod. Because of the high oversampling ratio, modulation sound is okay. However CPU load is high.

List of features:

  • Monophonic.
  • 64-fold oversampling.
  • 2 naive oscillators with triangle, sawtooth, and pulse waveform.
  • Cross and feedback phase modulation between oscillators.
  • 1 sine wave LFO.
  • 2 types of distortion that are square root and full wave rectification.
  • 1 lowpass filter.

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