Tinny distorted sound every couple mins

[drooopkid]

Hello there,

could somebody out there help me out with this problem?

Here's what I know:

every couple minutes my external speakers generate this harsh tinny static. the static varies in intensity but typically lasts for 2-6 seconds. Even with audio muted out this distortion still occurs, but at a much fainter volume. Switching to the on-board soundcard (SigmaTel?), this crackling seems to vanish. My speakers and external soundcard worked fine on a previous system (windows xp, if that is relevant).

What's the way to troubleshoot this? It's a persistent problem and hope to leave this fuzz behind me


SYSTEM:
Windows 7
Dell Precision Workstation 690
Intel Xeon CPU X5355

speakers (Yorkville YSM5) connected thru a Tascam US-122L

happy to supply additional info
Thanks

 

[dustin_ds3000]

Do you have a cell phone around you when this occurs. if so try testing with the cell phone in another room or turned off.

 

[drooopkid]

Thanks for the idea. no luck with it. going to trouble shoot the sound card by trying out a different one today.