Linear Through-Zero Frequency Modulation

In this patch, we’re doing some massive linear FM: the yellow oscillator is our carrier, and the green one is our modulator.⁠ TZFM is a special kind of frequency modulation that allows the so-called “negative sidebands” to be played, too. The result is a richer and cleaner tone!⁠




  1. Patch BRENSO’s yellow Sine output to your favorite output section.
  2. Set the yellow Linear FM knob fully clockwise.
  3. Start rotating the yellow Deviation knob and hear the Linear Thru-Zero FM.
    (Now the green oscillator is modulating the yellow oscillator’s frequency.)
  4. Adjust the green oscillator’s frequency to taste, and notice how the harmonic content changes accordingly.


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