Ableton Forum

I saw a thread once where there was someone with buzzing when touching certain parts of push while having a guitar going. Yes, it's probably some kinda grounding. No, it's not the pickups. It's most prominent when touching the tempo knob.

I certainly don't expect a solution here but I can't find the other thread so I wanted to bring it up again.

I guess it was me...
Didn't find any solution, and i gave up with push, so i can't really help.
It's LED (or at least power consumption) related as i encounter the same thing with my Launchpads. One advice i could tell is try to not power the Push and try to run your laptop (if so) on batteries.

It's a desktop

Sorry to hear you gave up on it, other than a couple of annoying things (not show stoppers) I've really enjoyed mine.

It's always grounding.

The only way to check is to test devices without grounding them to see which one is the issue. This often involves connecting without the earth pin which is not a solution.

Also, if you get this buzz try and test with bare feet on your floor then sit in a plastic chair with your feet off the ground and see if it changes tone or intensity. If it does then you have a path through Push, through you to ground so there is a poor/missing ground point somewhere in the chain.

I had an Alphatrack with a touch sensitive knob that was on a powered USB hub on the other side of my studio and I was constantly getting the slider "grabbing" when I moved it. If I lifted my feet off the ground it worked smooth. Issue was a difference in ground potential between 2 power points in the same room on the exact same circuit. The cause was probably because of the copper anodizing heavier on one of the sockets in the room than the other which means another ground path is a better choice for the signal. that problem was solved when I sold the Alphatrack anyway.