Crackling noises in Davinci Resolve

Tim Vervoort
1 min readJan 25, 2020

Recently I updated my editing room with active studio speakers. I installed two JBL 308P MKii monitors. They sound amazing playing music but make crackling noises in Davinci Resolve.

When scrubbing through the timeline our while rendering, a hard static noise can be heard from the speakers. During rendering this isn’t so much a problem, but when editing, this is really unusable.

If you google the problem, some people suggest a broken graphics card or a worn-out power supply. Other discussions talk about a ground loop that creates these unwanted noises. Assumed that the reason is the latter — because this problem doesn’t occur when using headphones or connecting a screen with built-in speakers, I search for a noise suppressor.

A quick Amazon search presented a ground loop insulator. I bought this one: https://www.amazon.de/gp/product/B019FC6ZQQ. For as little as €9.55, the problem is solved and there is no audible sound quality difference.

Cheap Amazon Ground Loop Insulator.

I hope this short article saves someone a headache!

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Tim Vervoort

Master Computer Science and video producer based in Hasselt, Belgium.