program on the computer ( part of Int.Explorer) running in the background likely w/ volume set to high.
From Guide:"To play a radio station using the Media bar
In Internet Explorer, click Media on the toolbar to open the Media bar.
On the Media options menu in the Media bar, click Radio Guide.
Select the radio station that you want to listen to, and then click Play." Make sure to stop playing.
May also come thru MSN explorer & possible via MSN messenger?
OR possibly a very cheap unshielded cable connected to machine might
be picking up off the air a nearby radio/TV Audio signal transmission.
This used to happen w/stereo turntables catching Taxi & SSBand CB radio transmissions & even nearby Baby Monitors.
Sorry I can't offer further ideas (I just don't know!). Good Luck! 
Whenever I'm on my computer there are random voices that pop up sort of like a pop-up ad but with no window. It sounds like a commercial you would hear off of the television. It's usually a cleaning ad. Sometimes it sounds like there are more than one commercials going on at once. I was wondering if anyone else had these problems or if there is anyway to fix it without having to take it some where to get fixed. Anything helps! and i already ran malaware and AVG
) find one of them to be the culprit. 
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