This is the strangest problem I have ever encountered. A few weeks back my speakers/headphones started making a constant buzzing noise. I can't remember exactly when this started, it may have been gradual. My problem is this:

Within the random noise I can hear what is happening on my screen. Scrolling pages, moving windows, drawing things, etc. all produce their own unique noises in my speakers. If I move my mouse I can hear a buzzing noise that gets louder depending on how fast I move the mouse. If I hold down a key on my keyboard, it makes a noise each time the letter repeats.

I suspect the problem is with my video card because if I make my cursor invisible and then move my mouse, I can no longer hear the movement.

Does anyone have any suggestions? Thanks in advance.

Running an ati card are we ?

omg

I guess I should have supplied some computer info:

ASUS M2N-SLI Deluxe AM2 NVIDIA nForce 570 SLI MCP ATX AMD Motherboard (onboard audio)
Nvidia 8800 GTS

I quick question b4 I leave for work........ kinda dumb too, but, Is the speaker jack plugged all the way in on the back of the computer ?

Yep. I tried rotating and wiggling it too. It's an almost new motherboard so the connection fits very good.

there might be some kind of problem with the jack of ur speaker.it hapens to me sumtimes and i just fix the audio jacks and the problem goes away....but am guesing u already tried that..huh??

check if ur chasing has a working earthing.......this is the only logical reason i can think of

You might want to check your English there That makes no sense I can see.

Earthing.... ground?

Chasing.... Case?

Hey I'm good

So you mean "check to make sure your case has a working ground" that kinda makes sense.

Might be the PSU. Either the ground is not working as well, or the PSU might be struggling to run everything, since you mention a 8800GTS which does require a good amount of voltage to run.

I've had a similar problem like this on my old dell with 4.1 speakers...
When I go on the internet and pages load or whatever the speakers if turned up a little bit make a "sorta" fast crackling noise when any internet activity happens. There is also a buzzing sorta when my cell phone rings. I have no clue what the actual problem is but I have fixed it thousands of times by adjusting the wires that connect to the 2 ports from my speak the sub connector and the outline. I have to keep those 2 wires sorta held up at an angle not touching any other wire from anything else and the sound usually goes away. It'll pop back from time to time if plug in a USB controller for madden but then I just have to move the wires and search the internet til I don't hear it anymore it's really annoying but maybe that helps you.

Hey everyone, thanks for the help so far.

I'm still not completely sure what's causing the problem, and I've just noticed another symptom that makes no sense. If I have a window open on the screen with any animation in it, I can still hear the same noise when the window is minimized. But if I end the program while it is still minimized, the sound goes away.

It seems like my motherboard or CPU is creating some kind of interference that's being picked up in the sound card...

Yes. I recall having problems just like that on much earlier systems.

I can see it being soundcard, MB, CPU, or GPU. No way to tell without swapping them out. Don't discount our friend Sarwar's advice based on his English. There might be a connection problem. Would not hurt to plug in a headset and see if it's still happening.

Today I finally got around to opening up the case and testing some things. I swapped the PSU with one from another computer, but still had the problem. Then I put in a different video card and still had the problem. I disconnected every wire in the case, reseated the CPU and heatsink, and plugged everything back in, and still had the problem.

At this point, I think it must be the motherboard. I disabled onboard audio in BIOS, and the problem stopped, but I don't really know if that means anything. Disabling audio seems like it might stop the problem no matter what is causing it. I'm thinking about buying a new motherboard...