Hi, I have a weird issue. One of my sounds behaves as follows: when I play a low note on the keyboard, followed by a higher note (say, two octaves higher) the higher note has some very low end “thump” added, but not EVERY note. There’s a specific pattern: if I hit one low note, and then a series of (the same) high notes, the 4th of the high notes gets the “thump”. Play two low notes in a row, the 3rd and 4th high notes get it. Play 3 low notes, it’s high note 2, 3 and 4. Play 4 notes or more, it’s high note 1,2,3 and 4. I have no LFO’s engaged. Sequencer is not running. Only OSC1 does it. It doesn’t matter if the sub osc is engaged (but it makes things worse). No PWM. I have absolutely no clue what to look for. Any ideas?
This is a wild guess (I don’t have an Analog Keys) but do you have glide on? It almost makes sense to me if I think about the fact that you have four voices. You’re moving n number of voices down in each scenario and the maximum is 4.
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Ah, you put me on the right track, thanks! No glide, or portamento, but I changed the voice allocation from “rotate” to “reassign” and the “thump” is gone. I still would like to understand where that thump originates from… I remember that I had set voice allocation to “rotate” on purpose, but I can’t remember what the reason was 
, maybe some sequences will mess up, we’ll see…
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Do you have a high pass filter with resonance on the track that’s accentuating some of the lower notes?
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Yes, definitely, there’s peak filter with resonance on the track, good analysis. But how would this explain that some notes get the resonance bump, and some others don’t and in a very defined pattern, due to the rotating voice allocation? Would that mean that the filter settings aren’t following the rotation correctly? That’s weird.
The theory that I had was that you’re only getting the effect on the voices that you have moved down. There is a specific order for use, I’m guessing (hence the pattern). The filter and res bump is working on all of the voices just fine but only the ones transitioning up from a low note hit it.
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Maybe it’s the analog soul escaping the tight grip of the digital control for a short while^^
I’m gonna check if mine does smt similar.
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