Xpantastic!

1) The easy way: Use Pedal 1 or 2 as modulation sources:
Go to Master Page/Midi/Ctrl and assign a control change number to Pedal 1 or Pedal 2.
In your tone, set Pedal 1 or 2 as modulation source of your parameter.
The bad news is that you'll have to set the modulation sources for each of your single patch.

2) The "geeky" way: Transform Control Changes messages to SysEx and send them to Xpander:
On the Xpander, to change a parameter in SysEx, you first need to send a page select, and then a parameter change:
ex:
page select: F0 10 02 0B 20 00 F7 (VCO1, subpage 0)
param change: F0 10 02 0A 00 08 00 00 00 63 00 F7 (bottom button...)

See the OberheimXpanderMidiSpec document in the file section of the group for details.
You don't need to resend a page select for the next param if it is still in the same page/subpage than the previous one.
Page/subpage select takes a lot of time to be taken in account by the Xpander.

So what you have to do is to have a software (Midi-OX, Bome's MIDI Translator) or device panel/mixermap(in Cubase for example)... on your PC that transforms a control change value into this kind of SysEx messages and send them to the Xpander.

The good news: Once you've setup this "CC# to SysEx" chain, it will work on every single patch without modifying them. You can even control parameters that have no free modulation sources.
The bad news: you have to read the Xpander MIDI spec and understand it before doing anything ;)

Hope this helps,
/Greg.


--- In xpantastic@yahoogroups.com, "stardent2000" <nickw@...> wrote:
>
> Hello I'm new to the xpander (and synthesizers in general) and was wondering if someone could help with a little advice.
> 
> I have an evolution mks-149 that has lots of assignable knobs that i would like to map to various parameters in the xpander (i really dont like the encoders on the xpander, they take so many turns to get from 0 to 127, and I can hear them clicking loudly through my headphones as I tweak a sound). I am using cubase and it receives midi from the knobs as I turn them but then what? the xpander receives pitchbend and modulation from the wheels ok but how can I tell the xpander to take data from a knob and map that to the (say) resonance. Can somebody point me in the right direction on this?
> 
> I hope I'm not asking a dumb question but I find all this VERY confusing!
> Thanks,
> Nick
>