Midi messages to an Audio effect

Oct 13, 2012 at 3:48pm

Midi messages to an Audio effect

Hello, I’ve a question about the possibility to send in M4L a Midi message to an audio effect: in particular, I’d like to tune a filter center frequency by a MIDI keyboard, so I’d like the patch to receive the message from outside…I know should be possible, but I can’t figure out.

Matteo L.

Oct 13, 2012 at 6:56pm

either use one of m4l’s ui object and map midi from inside Live the way you would for any standard Live audio effect, or you can get midi infos from a midi track into a max midi effect which will send the messages as control messages to your max audio effect.

Oct 13, 2012 at 7:02pm

Thanks, but the fist possibility It’s not for my problem…I need the value of the note and the velocity…I post the original patch in Max, and I’d like to make it function in the same manner in live as an audio effect. I’m sorry but I haven’t understood the second one, that seems what I’m looking for: could you explain It a bit.

– Pasted Max Patch, click to expand. –



Oct 13, 2012 at 7:56pm

1.) do you know the objects mtof and mtof~ ?
2.) midi input to plug-ins must be turned on somewhere in live’s prefs.

Oct 14, 2012 at 9:03am

I know abot mtof and mtof~, but the problem is that I’m not able to make the patch recieving the midi signal.is there an object capable to recieve midi in a maxforlive audio effect?

Oct 27, 2012 at 1:23pm

Below is a M4L device that allows to forward note and CC data to another M4L device, maybe this is what you are looking for!

Best, Robert

– Pasted Max Patch, click to expand. –
Oct 27, 2012 at 2:41pm

RH, this patch arrived just one vector size after you created it, that’s close to real time ;-)

Oct 29, 2012 at 9:34pm

Thanks Robert, seems to work great !!!!!!


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