Difference between Frequency Cross Modulation and

[oXo]

Hello all,
I need some help to have the right definition of this 2 terms :
- Frequency Cross Modulation (in my case it's the FXM function present in all the Roland XV sound engine, and it seems to be a fixed square waveform modulating an other wave)

- a Feedback generator or Feedback module.

In my opinion, the first one is a waveform modulating an other waveform and the second one is just the mixing of one waveform on itself

Can somebody help ? and give me the right definition ?

Thanks.

[mosc]

I don't have one of those synths, but I've found that sometimes Roland's terminology is unique. So, what I say is very probably wrong in this specific instance.

Feedback modulation is when you plug the output of an oscillator into its own frequency modulation input. With small modulation indexes, not much signal fed to the FM input, the effect is a nice richening of the sound. As you turn up the modulation, the sound becomes distorted and, IMHO, more interesting.

Cross modulation usually involves two osciallators, lets call them A and B. You would have A modulate B and B modulate A. This creates wild and wonderfull effects that are very unpredictable. I love it. Some people have said it is so unpredictable that it is unplayable.

I probably should not have responded to this post because this may have absolutely nothing to do with what's going on in the Roland.

[zynthetix]

[oXo]

Thanks Mosc.

[jksuperstar]

from http://dictionary.reference.com/:

scoff
v. scoffed, scoff·ing, scoffs
v. tr.
To mock at or treat with derision.

v. intr.
To show or express derision or scorn.

n.
An expression of derision or scorn.

[oXo]

Thanks Jk