Forum to discuss all matters relating to the MPC1000 and MPC2500 operating systems created by 'JJ' (all versions).
By BNI Sat Nov 26, 2016 1:57 pm
HI,
I've been mapping a midi controller to send midi CC to the MPC, works great!
each channel on the controller sends volume CC7 cutoff CC74 resonance CC71 to the corresponding MPC track.
But I have found a problem, sorry if it has been reported already but I can't find any info on the forum.

When controlling the filter of external synths everything works great,
but if I control the MPC filters I get a very strange behaviour,
the more I filter the sound the more a slow filter attack envelope shows up!
I'm using just one filter, with no Envelope depth, no link, nothing, just the plain filter.
If I adjust the cutoff with the datawheel inside the program editor everything sounds fine, but if I adjust it with CC74 (cutoff) the "ghost" slow attack problem appears..

I have tried to change program, filter type, set the envelope in every possible way,
but the problem is still there.
Any idea?
thanks!!
By BNI Thu Oct 11, 2018 4:39 pm
no idea, after finding this filter behaviour I have sold the mpc.
I think it was/is a bug, reported by email to JJ years ago