Hi everyone,
I’m looking for a module that can add and substract in hz from oscillators.
Just so I can, for example, have a 4hz beat from a 100hz oscillator, where one output is substracted 2 hz (98hz) and the other added 2hz (102hz).

And no, I don’t want to just have two oscillators with those frequencies for reasons that are beyond the scope of this Topic.

By finding a module that can add-substract, the possibilities expand exponentially.

log2((((261.626*pow(2,w)) - 2)/261.626))
log2((((261.626*pow(2,w)) + 2)/261.626))
^change this for beat freq.
261.626 is the frequency of the oscillator base frequency in Hz - the standard in VCV is C4=261.626 Hz (= 0V).
https://vcvrack.com/manual/VoltageStandards#Pitch-and-Frequencies

I don’t think there is a standard for fm in VCV Rack - some developers may make linear FM - some logarithmic FM. You have to look in their manual or ask for a specific module to figure out the relation between voltage and frequency.

But hey, don’t know exactly what it means? (what is n - and Z_{0}) ?
I’m quite bad at maths, studied maths and chemistry but failed maths miserably at university.

yes, a frequency shiftier is usually a ring modulator with a bunch of extra stuff to turn the two bands into one. If you just want to two bands then it’s easy.

if you have two freq, f1, and f2, a frequency shifter will output f1 + f2 or f1 - f2. a ring modulator always puts out (f1 + f2) and (f1 - f2).

In case it isn’t clear, “ring modulation” is AM, and frequency shifter is “single sideband modulation”.