from the dev:
"Here is a block diagram of the algorithms and a screenshot from the temporary editor. Please note that these are not yet final, this is implemented up to now, and maybe some more is coming yet. Oscillators on the block diagram are very simplified, you can see the real parameters on the screenshot. Beyond the three waveforms the oscillators have a special waveshaping mode that generates extremely rich metallic sounds. This requires the extra volume for each oscillator. Each oscillator has a pulse width modulation block with LFO and a release envelope.
The filter has lowpass, bandpass, highpass, notch modes with 12dB/oct or 24 dB/oct mode. The filter tracks perfectly with the pitch, you can drive it to oscillation to make whistle sounds that are tracking the pitch. "
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