Very low static audio with no inputs!

johnf2020

New Member
Firstly let me briefly explain my setup.

A set of Pioneer DDJ's with booth out to an external mixer then a cable from the mixer into the line in on a PC (which is running OBS)

I've been streaming a radio show and recording DJ sets for years without this issue (or maybe I've just never noticed it)

When there is no audio playing there's a clear, slight static/crackly audio sound. I am testing by just streaming live on YouTube (but a private stream only I can access) and just leave it streaming whilst I check everything. I've swapped cables, took the mixer out of the equation by connecting booth out directly to line-in, I've also switched booth to master out instead, again straight to line-in. I kept going like this and the same issue to the point where I've literally got no audio inputs to the pc whatsoever and am basically streaming silence and the noise is still there. It's ever so slight but there (but enough to hear there's something wrong)

This boils it down to the PC, the line-in port or OBS. I tried 2 PC's - same issue so unless it is a complete coincidence that both PC's have dodgy line-in ports this only leaves OBS.

What could possibly be causing this problem? I tried disabling the desktop audio completely as recommended on a few videos I found but no difference. My line-in audio capture has no filters, it's just a simple input. I tried a couple of the filters like Compressor etc. but ultimately they don't do anything (other than one of them - I can't remember which) silences the audio completely.

Maybe a silly question but is there always going to be some sort of crackly sound and it will never be compete silence or does it sound to you like there's an issue too? It's driving me crazy!
 

johnf2020

New Member
Another thing to highlight - as I said I tried 2 PC's. On the first one with no inputs or anything the green bar in OBS in the audio capture hovers up and down like there is something there. The static in this one is bad. On the other PC there is no hovering whatsoever in OBS but like I say the static is still there
 

johnf2020

New Member
As a third update I have basically replaced so many parts of my setup just to pinpoint the issue, I now have a completely different laptop and set of decks and OBS is running on a brand new PC and still same issue! I've whittled this down to either OBS or Rekordbox (the DJ software as that's the only possible constant whilst testing)

I'm trying some different software tomorrow and will update this thread. If the issue is still there OBS has to be the culprit!
 
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