concerns about the mod buss and vco 2

i’m i little worried about how much control you have over vco 2 as a mod source.

  • you can’t set the source to be vco2 and the destination to be vco1, you can only set the destination as “pitch” so it would effect itself as well?

  • also you can’t turn off the keyboard tracking of vco 2, or set in to a sub audio range

  • and you don’t get any output of the mod source..



    ok these problems aren’t all that bad but it would be nice if we could figure a way round them.
    i was just thinking how cool it would be to have your LFO slowly change shape, then realised you could do this with the VCOs waveform parameter, but that only the voyager would be able to take advantage of this.

you could use the cp 251 and slowly change the lag control on the square wave,
or crossfade between the square and the sine on the mixer

ha answered my own question, kind of.. :confused:


btw are the different shapes on the waveform knob just crossfaded from one to another or does it change in a similar way to pulse width?

Recursive FM is a good thing. Check out the crazy timpani I coaxed out of my Q+ using said method:

http://students.depaul.edu/~dshklyar/Q+/Qplus_hell_timpani.mp3

yeah that did sound cool!

hmm well it would be nice to have the option :slight_smile:

The voyager is pretty well specified in the fm department, I think. All three oscillators are available as modulators, with vco2 and vco3 both available as carriers (as is the overall pitch). The two mod busses mean that you can have vco2 and vco3 modulate each other. There aren’t many other synths other than modulars* that allow you to treat each oscillator as both modulator and carrier. And you’re obviously aware that you can use vco3 to modulate vco1 for linear FM. These possibilties mean that you can easily do a number of variations on single operator and recursive fm.

As far as your specific concerns go:

  • you can’t set the source to be vco2 and the destination to be vco1

true - but you can set the destination be vco3 and thereby achieve any single mod-carrier relationship you can think of. Insofar as you want to use both vco2 and vco3 to mod vco1, I don’t think that that is possible, but even then you could use vco1 and vco2 to mod vco3 or vco1 and vco3 to mod vco2. Anymore complex modulations than that wouldn’t be possible anyway (or you could use recursive fm to achieve a very similar result)

  • also you can’t turn off the keyboard tracking of vco 2, or set in to a sub audio range

but you can with vco3 and use it to modulate vco2. Or you could use the lfo to modulate either/both vco2 and vco3. If you must use vco1 as a carrier, then either the lfo or linear fm from vco3 could work here. I can’t imagine a situation where you’d want to turn off tracking on 2 oscillators and use them both as modulators, but doubtless you’ll tell me of one :slight_smile:

  • and you don’t get any output of the mod source

I’m not sure I understand. What do you want to use the mod source for here?

  • and that waldorf q beastie, but that’s an FM monster

i was talking about the little phatty, sorry for the confusion.

and you don’t get any output of the mod source

I’m not sure I understand. What do you want to use the mod source for here?

on the voyager (if you have the vx 351) you can output the mod source to things like moogerfoogers.

Ah, I see. I’ll get me coat.