# Arturia/Keystep　CV NOISE

**URL:** <https://lookmumnocomputer.discourse.group/t/arturia-keystep-cv-noise/2579>\
**Category:** Uncategorized\
**Created:** [December 30, 2020, 2:56pm UTC](https://lookmumnocomputer.discourse.group/t/arturia-keystep-cv-noise/2579 "2020-12-30T14:56:32Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![takacox123](https://avatars.discourse-cdn.com/v4/letter/t/e495f1/32.png) [@takacox123](https://lookmumnocomputer.discourse.group/u/takacox123)\
**Post date:** [December 30, 2020, 2:56pm UTC](https://lookmumnocomputer.discourse.group/t/arturia-keystep-cv-noise/2579/1 "2020-12-30T14:56:32Z")

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Does anyone know the cause of the noise that comes out of CV:GATE in Arturia/Keystep?  
I’m connecting Moog/Subharmonicon’s clock out to Moog/DFAM’s clock, sending midi signal from Arturia/Keystep’s CV:GATE to Moog/Subharmonicon’s clock in, and connecting an external modular sound source to Moog/DFAM’s external audio.  
When I connect the cable from the CV:GATE of Arturia/Keystep to Moogs, I hear a high frequency noise.

I found a similar question, but my problem could not be solved with that topic.

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**Author:** ![Dud](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/dud/32/610_2.png) [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)\
**Post date:** [December 30, 2020, 3:51pm UTC](https://lookmumnocomputer.discourse.group/t/arturia-keystep-cv-noise/2579/2 "2020-12-30T15:51:14Z")

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i don’t know the Keystep, but with the Beatstep pro there is a special wire/socket for this sort of problem

[![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/6/656955d6468c1300c5c0dd3dbe56ace994e932f2.jpeg "Arturia Beatstep Pro ground loop adapter Noise Reduction") ](https://www.youtube.com/watch?v=OyPutuuEYFQ)

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**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\
**Post date:** [December 30, 2020, 4:17pm UTC](https://lookmumnocomputer.discourse.group/t/arturia-keystep-cv-noise/2579/3 "2020-12-30T16:17:35Z")

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You didn’t say which topic you found that wasn’t helpful. So this one may or may not be.

> [@KeyStep noise‎‎](https://lookmumnocomputer.discourse.group/t/keystep-noise/681):
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> So this KeyStep I just got seems to pick up all kinds of noise when the USB cable is plugged into the computer (or a hub connected to the computer). If I power it using the USB cable plugged into a powered hub not connected to the computer it’s fine, it’s quiet. Has anyone else seen this?

It does sound like you may have a similar ground loop problem, if so you could try a ground isolator of the kind mentioned there.

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**Author:** ![heckseven](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/heckseven/32/23483_2.png) [@heckseven](https://lookmumnocomputer.discourse.group/u/heckseven)\
**Post date:** [December 31, 2020, 4:00pm UTC](https://lookmumnocomputer.discourse.group/t/arturia-keystep-cv-noise/2579/4 "2020-12-31T16:00:50Z")

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> [@analogoutput](#):
>
> It does sound like you may have a similar ground loop problem, if so you could try a ground isolator of the kind mentioned there.

When I had a similar issue, I had little success with the one provided, but I got one for USB power and it did the job.