Oh, I forgot. SFZ Player can play samples back and apply “digital” though zero PM.
Jakub Ciupinski has an interesting FM video where he demonstrates a use of a 0 Hz FM carrier wave (VCV WT VCO set to ~0 Hz).
After watching it, it suddenly dawned on me - the Neoni through zero FM is just FM with a 0 Hz carrier wave. The “frequency” setting of the Neoni simply controls the scaling of the FM modulation. Another way to say it is the frequency can be used to set the depth of the FM.
To get the slow beating that the VCV WT VCO produces, you need to set the Neoni FM to DC coupled, and then add a few (maybe somewhere between 2-7) mV DC bias to the FM modulating signal.
The Neoni carrier frequency is so close to zero, that there is no discernable beating. Adding the bias effectively offsets the base frequency of the carrier to something other than 0.
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