I'm having a problem with my sound system. Every time I plug the audio cable into my desktop computer, a loud buzzing sound comes out from the speakers. The same thing happens when I plug the cable into the TV.
HOWEVER, there's no static or humming at all when I plug the audio cable into my laptops, Macbook Pro and a Gaming Laptop, even when they are plugged in and charging. There's also no static when I plug the audio cable into a mobile device such as an iPad, iPod, and iPhone. So, I know the problem could not be the cable or amplifier.
I tried to see if the buzzing would go away if both the computer and amplifier weren't grounded, but the buzzing remained.
Any ideas what could be causing this static sound?
System specs:
1977 PEAVEY CS-800 amplifier
~2007 Dell Dimension w/ Windows 7
~2007 Samsung 46" LCD TV
Hope this helps!