Pulse Shaper

Here’s Brenso’s second waveshaper, and there’s a lot under the hood!⁠ First, a comparator generates a pulse wave, either from the triangle core or from the result of the first waveshaper. In this way, you can have different phase relationships, and you can also obtain a pulse-width modulation by working on the source material, rather than the comparator threshold.⁠ Then, a waveshaper gradually emphasizes the low or high end, until it inverts the phase.⁠ Finally, this peculiar pulse wave is fed into the wavefolder, and the sound palette becomes even wider!




  1. Patch BRENSO’s Final output to your favorite output section.
  2. Set the Source knob fully clockwise.
    (This will route to the wavefolder just the signal coming from the pulse shaper.)
  3. Set the wavefolder knob roughly at 8 o’clock, right until you begin to hear a sound.
  4. Rotate the Pulse Shaper knob.
    (You will hear a distinct change in the harmonic content, and the tone will become brighter as you reach the 1 o’clock position, and more mellow towards the edges.)
  5. Set the Wavefolder knob to any higher setting and repeat point 4.
    (The differences between shapes will become more and more distinct.)
  6. Set the Symmety knob to a different value and hear how it affects the sound.
  7. Alternatively, you can hear the sound of the Pulse Shaper by patching the yellow Square output to your output section and turning the switch on the right.


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