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Kick drum voltage problems when pinging Filters

Finally found a great kick drum sound using a Doepfer A-105 and pinging it with an ADSR.
The problem is the resulting kick drum sound has an unstable (intermittent) positive voltage in the artefacts of the resulting sound, making it useless to generate envelopes to duck VCAs.
Has anyone got any tricks to make a more 'stable' sound. Quick term fix seems to be a low pass filter (set very low) before the envelope generator, but I'd rather be able to fix the kick sound itself.

it might be an idea to diagram your patch... so we can work out where your 'intermittent +ve voltage' is coming from

you could just use the envelope for the kick and inverrt it for ducking vcas... no need to envelope follow the kick...

"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia

Utility modules are the dull polish that makes the shiny modules actually shine!!!

sound sources < sound modifiers < modulation sources < utilities

Super simple patch:
Kick drum -
Gate -> ADSR (A-140-2) -> CVF A-105-2 -> Out

Ducking -
Kick drum -> A-119 -> Envelope Out -> A-138j (inverted) -> VCA processing bass synth.

The A-119 basically can’t distinguish a ‘clean enough’ kick sound to generate a smooth envelope. No issues with samples, use this setup all the time.

SOLVED.

After lots of tinkering and re-patching, best approach seems to be to adding a VCA at the end of the Kick drum patch using the ADSR out2 to tame the voltage variation. Got lots of pumping from the A-119 now. :)