It's my understanding that a simple expression pedal, like the M-Audio EX-P or the Yamaha FC7, as well as some sort of MIDI USB device is what I need to do this.
So far, I've got the Guitar Link plugged into my computer via USB, which works fine. It looks as though most of the expression pedals on the market have a 1/4" audio output, and the device I need to make the pedal send midi information to my DAW and control the wah plugin is something like this: http://www.audiofront.net/MIDIExpression.php
...Which receives a 1/4" jack and then connects to the computer via USB. From then, the plugin "learns" the device and I can then control it.
But this is only guesswork on my part. If I'm lucky enough to have not screwed myself over and bought incompatible hardware, my theory is that if I plug the MIDI device into a USB port and the Guitar Link into another USB port at the same time, I can record the audio and the midi info at the same time.
So I think it might work like this:
Guitar>Guitar Link>USB port, sending an audio signal to my DAW
and
Expression pedal>MIDI device>USB port, sending a MIDI signal to my DAW
...Is this right? Is there some other signal path I need to take? Or am I completely off the mark?
I'm using Logic Pro X on a Mac, and I'm planning to get Amplitube, if that's any help.
(Additional question: Does an expression pedal like the ones mentioned above require power, like a nine-volt battery? I couldn't find much info about it.)
