[sdiy] jitter in oscillators for music purposes

[karl dalen]

> > true, therefore it is not phase modulation allone.
> > It's getting more complicated.
> 
> We see a horrilbe mix of phase modulation, frequency modulation and
> amplitude modulation. The frequency modulation is really just a signal 
> integrated before it contributes to the phase modulation. The total phase
> modulation signal will contribute to the amplitude modulation.
> 
> The power supply DC part will affect the amplitude but not the frequency.

Are you absolutely shure on this? I would say it do affect frequency!

> The power supply AC part will contribute to both frequency, phase and
> amplitude modulation. 
> The modulation AC part will cause phase/frequency modulation (due to
> the lower  corner for the integrator to actually act as an integrator)

And where would that lower corner be positioned, for lets say a TL082?
What is this "lower corner" actually in a integrator?

> where the lower
> frequency part is phase and the upper part is frequency modulation. 
> The comparator noise AC part will cause phase and amplitude modulation.
But only at ramp sample time, (ramp reset)! 

Let's say this would be an moog or for instance a korg core with the
intgration cap as usuall to + refV or V supply then the cap leakage
could play a part! but i think its so small it cant be heard!

Then let's say this would be an moog core with the intgration
cap to gnd would then gnd impedance variations be significant?
(im about to say, yes).
 
> Simple, huh?

Yes..........no...........yes..............no.............!
 
Reg
KD (sliding around on banan shells)

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