this is what I found on another forum:
Join Date: Apr 2009
Location: San Antonio, TX
The APC40's LEDs can be controlled super-easy by Traktor. Its just a matter of outputting either value 1,2,3,4,5,6 to change the LEDs from green/blinking green/amber/blinking amber/red/blinking red (I don't know if that is the respective order at the moment).
I've almost finished setting mine up completely, but I'm using it in conjuction with a VCI-100. Pretty much, each deck is given two columns of the APC. On the button matrix, one column selects hotcues 1,2,3,4 and then toggles Play/Pause. The second column selects hotcues 5,6,7,8 and then toggles Loop Active. The first two columns are always lit green, the second two are always lit red, the third two always green, and the fourth two always red to help me distinguish which deck I'm messing with (and when staring at all the buttons at once, it could get pretty disorienting without some sort of distinction). I also set up the Play/Pause and Loop Active buttons to blink when I'm reaching the end of a song so that I can quickly be alerted to activate looping and select hotcue 8 (which I always have mapped out as a quality loop near the end of a song) in case I needed more time.
Haven't done much with the Clip Stop row for now. I always leave the Scene Select row on Master to keep the rotaries and buttons on the same channel, but I may need to alter that once TPro 1.2 comes out and I need more control over fx banks.
The small buttons are used to activate fx slots for each deck (I'm placeholding 4 for when TPro 1.2 comes out), which leaves you with two buttons left for something like key lock and sync.
One of the faders is used for panning (really nice to have access to) and I haven't assigned the other one yet, but I'm thinking of using it for the key knob on the GUI.
The Scene Launch column hasn't been taken advantage of much. I use the LEDs to show master output level and clipping making for a fun visual VU. The Cue Level and Master fader are used to change BPM and Tempo Mode respectively.
Knobs and buttons on right side of controller are basically used for fx control and some MOD commands.
Maybe that gives you some ideas for your mapping.
Last edited by misa : 07-17-2009 at 12:14 PM.
macbook 2.4 ghz 2 gig ram, akai MPK 25, uc33e, apc40, ableton 8 suite, krk vx6, NI audio 8