Can I change drum pad colors on Impulse 61 via MIDI?

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cbarn
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Joined: 03/20/2015 - 06:18
Can I change drum pad colors on Impulse 61 via MIDI?

I'm using my Impulse 61 with SONAR X3 - currently using it with Automap, but there's some gaps in what Automap supports for SONAR that I'd like to shore up with AZController.  In particular, I want to use the drum pads as controls and to provide feedback by changing their color.  

I can definitely use the drum pads as controls, either by leaving them as notes or changing them on the Impulse to send CC instead.  What I don't know is whether they can be used for feedback - can I send MIDI to the Impulse which changes the color of a pad, or turns the light off entirely?

On of my other controllers, a Korg nanoKONTROL2, supports this really nicely - if a button on the Korg is programmed to send a CC, you just send that same CC back to the Korg with either a 0 (light off) or 127 (light on) to illuminate the button.

cbarn
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Last seen: 1 year 8 months ago
Joined: 03/20/2015 - 06:18

OK, I've partially answered my own question by playing with MIDI-OX and looping the Impulse's output back to itself.  If the drumpad is left mapped as a note, you can send a note-on message to that note, and the drumpad illuminates at a brightness determined by the note's velocity until a note off is received.  The color is always red, and you can't turn it off completely - a velocity of 0 (or a note off) makes it the normal dim red, and a velocity of 127 makes it as bright as it gets.  You can also map the drumpad as a CC and do the same thing - send it the same CC and you get brightness corresponding to the CC value, but always red.  There doesn't seem to be any way to trigger other colors, and there's no response if you map it as NRPN or RPN.  So, usable, but certainly not as good as it could be!  

Oddly, the mute/solo buttons under the faders don't respond in the same way at all - they appear completely oblivious to external input.  They obviously CAN react to external stimuli, since they'll track mute/solo status on tracks when in mixer mode supported by Automap, but there doesn't appear to be any way for the humble user to get at them.  

It looks to me like there are a lot of functions that are controlled directy by Automap via a proprietary protocol over the USB connection, not via MIDI - control of those buttons, "telling" the Impulse that it's able to control a plug-in or mixer (so that the plug-in and mixer button modes are enabled), telling the Impulse the names of the controls it's operating on a plug-in and what their current value is, etc.  It's a damn shame there's no way to access that layer and really gain total control over the device (and using it, total control over the DAW).  I don't suppose there's any chance Novation would expose those protocols & APIs, and/or open-source Automap ...?