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Hi guys,

everytime when i crank my mixer up (to control monitor loudness) i hear some crackeling,and sweeping.
I tried almost everything,using my Internal soundcard (M-Audio 2496) and different external Cards (Esi u24xl / Motu / ....)
Everytime i hear that crap!!

If i move my mouse,i can hear the graphic card (or CPU) working, so i dont think it is an external issue.

Anyone an idea?

Thanks!

I can hear that sometimes through the headphones on my laptop.

That is a really nerve killing sound...
any chance to fix that?

Sample it.

hahaha,n1 !

it could be a ground loop. you'll probably need to get balanced connections and other stuff if you have a ground loop, lots of info on the web but it can be a pain.

also check where your sound is coming from. Usually it's either some kind of ground loop, or interference from other devices.

yea,need to check that.
i´ll try 2 circiuts first. Maybe it´s really a ground loop.

sounds like a ground loop

no, wait.

ok, it`s a ground loop.

I had a similar problem when using rca cables into my monitors, i switched over to two guitar leads and it was fixed. May be something completely different though, but it's worth a try if you have those leads lying around like I did.

the problem is not just the sound through my monitor, even in my INPUT in ableton i can see a lil bit of Sound coming in ( if everything is Muted)
and if i wear headphones,just the same sh***!

i earthed the outside of my signal cable to my pc, that sorted my issue out. can be a pain to find out what the problem is. i get cpu whine on my laptop, only when i use the crappy intel built in audio chip. you shouldn't get that if you have a usb or firewire interface, so i'd think its definitely some sort of ground loop. is there an earth point on your audio interface?