Why doesn't Scrambler/Scatter reach digital noise in Zebra 2?

[JoeLowery215]

Hi Urs, normally in FM synthesis, feedback of the Sine eventually reaches harsh, digital noise. But for some reason in Zebra 2, it never gets to that point.

Why is that? Is there a way to get there? Thanks!

[Urs]

That is because they are rendered into a wavetable. In Z2 (as well as Z1 and Z3) the oscillator uses single cycle wavetables as a kind of snapshot of the waveform and everything that mangles it. That snapshot is played back for a while until another snapshot is made. When a new snapshot is made, the process of "render waveform -> apply FX1 -> apply FX2" repeats, and if nothing changed, will be exactly the same.

Such that, while Scrambler/Scatter reach noisy levels, a single cycle wavetable filled with noise is still harmonic.

[JoeLowery215]

That is because they are rendered into a wavetable. In Z2 (as well as Z1 and Z3) the oscillator uses single cycle wavetables as a kind of snapshot of the waveform and everything that mangles it. That snapshot is played back for a while until another snapshot is made. When a new snapshot is made, the process of "render waveform -> apply FX1 -> apply FX2" repeats, and if nothing changed, will be exactly the same.

Such that, while Scrambler/Scatter reach noisy levels, a single cycle wavetable filled with noise is still harmonic.

Very interesting I love the math!

So is there a way to reach the Phase modulation/noisy feedback sound?

[Urs]

That is because they are rendered into a wavetable. In Z2 (as well as Z1 and Z3) the oscillator uses single cycle wavetables as a kind of snapshot of the waveform and everything that mangles it. That snapshot is played back for a while until another snapshot is made. When a new snapshot is made, the process of "render waveform -> apply FX1 -> apply FX2" repeats, and if nothing changed, will be exactly the same.

Such that, while Scrambler/Scatter reach noisy levels, a single cycle wavetable filled with noise is still harmonic.

Very interesting I love the math!

So is there a way to reach the Phase modulation/noisy feedback sound?

Kind of. You need to set resolution high and continuously modulate those between about 60 and 100. Those fills the wavetable with ever changing noise patterns.

[JoeLowery215]

That is because they are rendered into a wavetable. In Z2 (as well as Z1 and Z3) the oscillator uses single cycle wavetables as a kind of snapshot of the waveform and everything that mangles it. That snapshot is played back for a while until another snapshot is made. When a new snapshot is made, the process of "render waveform -> apply FX1 -> apply FX2" repeats, and if nothing changed, will be exactly the same.

Such that, while Scrambler/Scatter reach noisy levels, a single cycle wavetable filled with noise is still harmonic.

Very interesting I love the math!

So is there a way to reach the Phase modulation/noisy feedback sound?

Kind of. You need to set resolution high and continuously modulate those between about 60 and 100. Those fills the wavetable with ever changing noise patterns.

Awesome thank you. Just to be clear, I’m modulating Scrambler/Scatter?

[Urs]

Yes. But don't expect too much. By principle, the audio in Zebra is less noisy.

[JoeLowery215]

Yes. But don't expect too much. By principle, the audio in Zebra is less noisy.

Ha, well! To push back on that statement, the FMO module, self osc mode def gets into amazing harsh digital noise!