speakers making static sound

My pregnant + Make A Static Crackling Noise when plugged into my sound card?
I tried with my surround (Logitech G51 WT 310) and My Sony Hi-Fi (780WT) They both get this crackling noise when being plugged into my soundcard. my card supports 5.1 and 2.1, and yet I get this interference as noise. Is there something I could do to get at least one pair of speakers to work on my PC? Ohh and might I add, once connected to my laptop worked fine.
This noise is usually due to static electricity. It looks like a problem of land. Make sure your PC and all devices are connected to the earth. Who should solve
Onkyo TX-NR3007 static noise problem front left speaker.AVI