Electrical Crosstalk on hihat input

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Re: Electrical Crosstalk on hihat input

Postby dmitri » Sat Oct 25, 2014 7:10 pm

DonGui wrote:Do you want me to do the tests you asked in your former post and post the screenshots, would that help diagnose further ?

Please, do.
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Re: Electrical Crosstalk on hihat input

Postby DonGui » Sat Nov 01, 2014 5:42 pm

Hi Dmitri,

Here are the screenshots you suggested. I didn't realize that before, but actually the miss triggering of the kick only happens when i hit the edge of the hihat, not the bow, so I went ahead and added screenshots for edge hits as well.
The screenshots were made with the kick pad plugged back in its original socket, and the xtalk level set at 4.
Also, I found out with the screenshots that when I hit the bow hard, the edge tends to trigger as well, but I don't know if that's really an issue, as it doesn't disturb me when I play.

Thank you for your help,
Guillaume
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Re: Electrical Crosstalk on hihat input

Postby DonGui » Sat Nov 01, 2014 5:44 pm

Here is the rest of the screenshots (the forum limits it to 4 by post).
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Re: Electrical Crosstalk on hihat input

Postby dmitri » Sat Nov 01, 2014 8:40 pm

Judging by the logs, I can see false kick triggering only in one place:

0.060 10 0x99 0x1a 0x79 D1 Note On
0.003 10 0x99 0x24 0x17 C2 Note On

Velocity 23 (0x17) of the kick false triggering is very high in this example. XTalk suppression is meant to eliminate only weak false signals (somewhere below 10 depending on XTalk suppression level) otherwise it might start suppressing real hits like those in the 'kick light hit.PNG'
One of the reasons might be that HighLevel on the Kick is set too low causing low signals on the input to be interpreted to be too strong.
How high can you set HighLevel on the Kick and still be able to get maximum velocity on really hard hits on the kick?
If with this higher HighLevel value it's harder to get high velocity kick hits than it's better to choose a different Curve rather than lower HighLevel.
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Re: Electrical Crosstalk on hihat input

Postby DonGui » Thu Nov 06, 2014 7:46 pm

Hi Dmitri,

I reset the high level on the kick to a higher value, and it had a positive impact on crosstalk. I had indeed set it intentionaly low to have a more constant and full sound on the kick, but i'll use the curves for that. Changing the highlevel seems to have also improved the low level hits detection, I don't know if that was supposed to.
I still find it better to plug the kick in an input further away from the hihat on the rear of megadrum, as I still get more crosstalk when plugged into its usual input. It's still weird how this crosstalk issue appeared out of nowhere, I didn't have that much trouble months ago although I changed nothing in between.

Anyhow, thank you for your invaluable help !

Guillaume
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