# Steiner Parker filter ground noise (with video)

**URL:** <https://lookmumnocomputer.discourse.group/t/steiner-parker-filter-ground-noise-with-video/6937>\
**Category:** DIY STUFF\
**Created:** [January 24, 2024, 6:24am UTC](https://lookmumnocomputer.discourse.group/t/steiner-parker-filter-ground-noise-with-video/6937 "2024-01-24T06:24:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![shawneesnaketail](https://avatars.discourse-cdn.com/v4/letter/s/a698b9/32.png) [@shawneesnaketail](https://lookmumnocomputer.discourse.group/u/shawneesnaketail)\
**Post date:** [January 24, 2024, 6:24am UTC](https://lookmumnocomputer.discourse.group/t/steiner-parker-filter-ground-noise-with-video/6937/1 "2024-01-24T06:24:46Z")

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Hello, I recently built Eddy Bergmans Steiner Parker filter and am having some issues. I haven’t added cv ins or outs yet, so just input output and the filter select switch. I am dealing with a ground hum/buzz sound on the output of the filter. I have checked grounds a million times and everywhere ground should be, it is. What components could cause this phenomena ? I really want to learn these things to make diagnosing less of a literal nightmare.

layout [https://blogger.googleusercontent.com/img/a/AVvXsEgYOReS8Bpei14QrbjrjXwmQkgskAwmLMU59XntCXk\_VRYmf70zHh7IOxwfwqtsCycC1i2xrWKtT7s1sd9Ma0zZ8o2fgy5VK3CAe-1QkplAJ2X7mDAkWwdg57jAWYGbNDU1qHrF4lYZQZPkVL3cWcjWPbxwj1Tu8qn7dqi61X8fvu4bPXvzutNH-euaMw=s4267](https://blogger.googleusercontent.com/img/a/AVvXsEgYOReS8Bpei14QrbjrjXwmQkgskAwmLMU59XntCXk_VRYmf70zHh7IOxwfwqtsCycC1i2xrWKtT7s1sd9Ma0zZ8o2fgy5VK3CAe-1QkplAJ2X7mDAkWwdg57jAWYGbNDU1qHrF4lYZQZPkVL3cWcjWPbxwj1Tu8qn7dqi61X8fvu4bPXvzutNH-euaMw=s4267)

I have attached a video of the sound in question. _emphasized text_[https://youtube.com/shorts/jBNWxGNO8Dw?si=hZ0oIFz9KwHQvsec](https://youtube.com/shorts/jBNWxGNO8Dw?si=hZ0oIFz9KwHQvsec)

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**Author:** ![Bpbby](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bpbby/32/15259_2.png) [@Bpbby](https://lookmumnocomputer.discourse.group/u/Bpbby)\
**Post date:** [January 24, 2024, 7:53am UTC](https://lookmumnocomputer.discourse.group/t/steiner-parker-filter-ground-noise-with-video/6937/2 "2024-01-24T07:53:20Z")

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On the posiitive the filter sounds amazing !!  
Is the huming noise also here when nothing is plugged in ?

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**Author:** ![Jos](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/jos/32/151_2.png) [@Jos](https://lookmumnocomputer.discourse.group/u/Jos)\
**Post date:** [January 25, 2024, 12:17am UTC](https://lookmumnocomputer.discourse.group/t/steiner-parker-filter-ground-noise-with-video/6937/3 "2024-01-25T00:17:09Z")

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Check all cables by measuring their continuity. Do not assume that any of them are ok.  
The humm points to a grounding issue, and that is most likely a cabling problem. Since the filter sounds OK, you do not need to search for the problem there.