What does this mean?

[whisperingbait543]

I was on meet me.com earlier and I was looking at my profile and all of a sudden I heard laughter coming from my laptop, at first I just though it was one of those side page advertisements, but then it keep going so I looked to go cut the sound off to the advertisements, didn't find it, so I thought I had clicked on someone's profile (it could have been a song or something a person had on their page) it wasn't that either. It sounded like little kids laughing with music in the background. a friend of mine said it could my fan in my computer or my hardrive about to go bad. I looked to see if someone had hacked my web cam and it wasn't on so that theory was out. trust me I am not going crazy lol. What could it have been?