ACE -using mapping gen to modulate individual voices within a stack?

[hakey]

So in the DUNE thread Urs said -

modulation across unison boundaries isn't all that new. DCAM has a voice modifier, and ACE uses the Mapping generator to do the very same thing

Now, as I understand it, in DUNE paramaters for each individual voice can be modulated separately. So in a 2 voice stack each voice can almost be treated as a separate patch - at least modulation can be applied so as to result in voice 1 sounding quite different to voice 2.

I've been scratching my head trying to work out if, as Urs implied, anything like this is possible in ACE using the mapping gen, and I can't see it. What's the trick?

[Urs]

When the Mapping Generator is set to "alternate", it will have a different value for each unison voice. Take an example:

Set Stack to 4 voices
Set Mapping Generator to 4 steps
Route Mapping Generator to Osc1 tune, +12 semitones.

Play note. Adjust Mapping Genrator.



Now, if you use the Mapping Generator in conjunction with a Multiple (plug into "mod" input), you can route any modulation source in any depth to any target. Think of this as "setting separate modulation depths for each unison voice".

It's not as flexible as, say, Dune, but it's very fast, as you can modulate multiple unison voices differently with just 1 control.

FXpansion have a video btw. showing the very same principle in Strobe. It's called "hidden oscillator tutorial" or so.

[hakey]

Ah, I see!

I'll have a play around.

[hakey]

How many layers can be separately modulated in this way?

Would it, for example, be possible to route modwheel to progressively detune 3 or more voices in a stack against one another?

EDIT: Just tried it (mapper to multiple mod, mw to multiple, multiple to osc1 pitch) and I think it works - kind of hard to tell whether all three are equally relatively detuned?

[hakey]

Hmm.. talking to myself here, but it looks like matching the mapper number to the number of voices in the stack is the way to go - the mapper stops alternating with each keystroke and adjusting each column then affects just one voice.