Posts by noisecoalition

Quote from Wheresthedug

It sounds like wolf tones from having the pickups too high. I noticed you said it happens with other guitars too though. So unless you habitually set all your pickups very high it's unlikely to be the cause. It should be a very easy exercise to check though. First measure the height of your pickups under both the high and low E strings (so that you can return to the current setup later if you choose). Now lower all pickups significantly. You need to do all pickups even if you are only listening to one of them as the problem is caused by the magnetic pull which still affects the strings when the pickup is bypassed at the selector switch.

If the noise disappears you have found the culprit and can start raising the pickups gradually until you get a sound you like without any interference. If it doesn't help just put the pickups back to where they were and at least you have ruled out another possible cause.

Yeah I considered the guitar as the problem at first but if I plug in my guitar to a real amp or the DI of preamp, its totally clean.

Quote from V8guitar

Another thought - I used to get "ghosting" when I used my Focusrite into Ableton and it sounded similar.

Do you get this same issue through headphones? Check that if you haven't...

Hope you find it soon!

It took me a second to test because the Kemper had been clean for a couple days but now the issue is back. I listened to the headphone output and its perfectly clean.

Quote from DamianGreda

Sounds like a ring modulator. Certainly something is wrong - unless you are using a ring modulator somewhere in the FX section.

No effects enabled unfortunately.

Quote from deadpan

I bought my unit used and it did it constantly when I first received it.

I see. So resetting your flash memory fixed it? I submitted a support ticket but I'll note resetting the flash memory as a possible solution. Thanks!

Quote from deadpan

I would try to reset the flash memory. Mine did the same or similar years ago.

Although contact support first.

Thanks for the tip! Was your problem also intermittent or was it constant once it started happening?

Quote from Vinny Burns

I had a very similar thing that would happen in my last house. That noise is so reminiscent. It was the mains being polluted. We were the last house the furthest away from the substation and the mains was dirty by the time it got to me. Some days it was ok. By 11 pm at night, I couldn’t record anything as it had that noise on it.

I never got it sorted out. My friend was in charge of the substations for the electricity supplier. He tested my mains. Sent sine waves from the substation. All kind of tests. He got the company to dig up part of the street to replace the cables. In the end, nothing helped. I was looking into balanced power supplies and everything at the time but then we moved anyway to where I am now.

Simplest thing is to go to friends house and listen there. After hearing your clip, I am 99% convinced this isn’t the Kemper and is actually the mains supply

Interesting! Did you have problems with all your gear when your power was being fussy? I was able to record a clean signal into the DI of my preamp while the Kemper was giving me that weird harmonic content which led me to believe that the problem was with the Kemper.

Quote from JEverly

I wonder if it is interference coming in through your power somehow? Maybe fluorescent lighting or some sort of transformer that is near a cable or power cord? The fact that it comes and goes is what is leading me down that road.

I'm going to try to switch the power source the next time it happens and see if that fixes it!

Quote from wiegersma

Does this also happen when you use another guitar?

Yeah, it does.

Quote from JEverly

That is definitely strange. It sound like it could be either some fret buzz that is getting into the pickups or a slightly over driven signal within your recording chain. That is just a first thought. Of course, there are probably many other things that it could be.

I just listened to it again and had another thought. It also sounds like it could be some hum, like a 60 cycle hum that is in your signal chain that comes through when the guitar sound comes through. Do you have a gate in the track? If you do, turn the gate off and see if you have a hum.

The example I posted was with the gate at 0 / off.

The weird part is that it'll come and go and I can't figure out if there is any pattern. This morning I fired up the kemper, same profile, signal chain, and it's totally clean. Yesterday I couldn't get it to go away for most of the day, even after multiple resets / power cycles.

I'm encountering a strange problem where sometimes my KPA will add a harmonic to the notes I'm playing. It sounds like something happening digitally, possibly aliasing? It happens no matter what rig I choose and with/without effects / stomps. If I plug my guitar into a preamp directly, the tone is clean. Any ideas about whats going on here?

Example (totally clean, no effects, noise gate at 0): https://soundcloud.com/noiseco…r-harmonics/s-dwZLKEyq6uj

Quote from Calahara

It looks like there's a tool I can use to send NPRN commands via Ableton, which would sort me out. I really appreciate the help, folks, as well as the knowledge that it can work on the latest version!

Were you able to control the Kemper looper in Ableton? Is the Ableton tool you're using a Max for Live plugin called "NRPN Gen 2 1.0"?Really interested in this. Thank you!