I agree. It sound's like a grounding problem. I get the same when I plug my laptop's internal audio output *and* a usb soundcard output connected to the laptop into the same mixer.
Have you tried direct boxes between the soundcards and the mixer? You should be able to lift/drop the ground to kill the hum. On Jul 17, 2012, at 3:31 PM, Benjah @ 01xy.fr wrote: > if it's laptops, try to remove the power supply of the 2 computers to see if > the noise is still here, you can then remove the ground from the electrical > socket (power strip ?) and replug the power supply > > ++Benjamin > > > Le 17/07/2012 20:48, Roch Jub a écrit : >> by the way I have tryed on several computers ... >> >> with several cables ... >> >> and I found that wich is the same problem but no solution >> http://forums.techguy.org/networking/286779-laptop-makes-high-pitched-noise.html >> >> 2012/7/17 Roch Jub <[email protected]> >> hey ! >> >> so I have a weird problem here >> >> On one laptop I had no line in, so I bought a behringer UCA202 wich is a >> line in to usb. >> >> Now when I use it, in pure data, or audacity, but i'm sure other softwares, >> >> it's working fine untill I plug the laptop to another laptop with just a >> RJ45 cable, no box. >> >> As soon as the computers are connected, I have a terrible noise ... it's >> quite low, but it's very anoying. >> >> Somebody ever had this problem ? >> >> cheers >> >> >> >> _______________________________________________ >> [email protected] mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list > > -------- Dan Wilcox danomatika.com robotcowboy.com
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