This turns out to be quite simple.
1) Open Logic
2) Open Max (I’ve got a “MaxToLogicPlugins.pat” file email off list??if you want a copy)
In your Max patch, create a [ctlout] object and connect a number box??to the left most inlet.??I’ve been using [ctlout 85] which sends??values out to CC85 (which is usually unassigned, I think).??Then??double click on the [ctlout] object to set the MIDI output port.??I??usually select “from Max/MSP 1”.
3) insert a plugin into a Logic Track (leave the plugin window open)
4) In Logic hit COMMAND+L (the Controller Assignment Window will open)
????if the window does not open you may have to create the key??command for
????”Learn new Controller Assignment” (more on this below)
5) click the slider (on the Logic plugin) you want to control
6) Go directly to Max and adjust the dial or number box that is??sending CC values to your [ctlout] object.??I limited mine from??0-127, I do not know if other ranges are possible.
7) Go back to Logic and hit COMMAND+L again
Now when you move the number box (or dial) it should move the plugin??parameter in Logic.??You may have to move the number box a bit before??it activates.
These settings are stored in Preferences => Control Surfaces =>??Controller Assignments, and can be deleted from that page.??I am also??unsure if these are stored (and thus active) for all Logic Documents??or if they are Logic document specific.
Much of these instructions came from:
http://discussions.info.apple.com/webx?128@501.fIEhaPsX96e.2@.68b375f6
Here are the instructions I learned from:
http://www.logicprohelp.com/viewtopic.php? p=2194&start=0&sid=aed65a5872d9d9aa5667d4681eb4734c
Logic Pro 7 makes it very easy to use your MIDI controller’s wheels??and knobs to control your Logic mixer and plug-ins interface. Here’s??a quick guide:
1?Hit Command+L*
(L as in Learn) – The Controller Assignment window opens. Uncheck??”Expert View” if necessary and move that window out of the way (don’t??even worry about it).
2?Click on the fader or knob you want to control.
3?Move the knob on your MIDI controller
(for better results have the knob on zero before you start, and then??move the knob slowly from zero to max and back down to zero).
(you can repeat steps 2 and 3 for as many knobs as you want)
4?Hit Command+L
(and close the Controller Assignement window).
You’re done.
* If Command+L is not assigned you can assign it (or any other key??combination) yourself in your key command window: search for the key??command “Learn new Controller Assignment”.