Weird Sounds from computer speakers

Have no idea what they are / mean.

[jchance]

Every once in a while on both my main office computer and my laptop two soft very brief sounds come from my computer.

They sound like:
"Chi"
2 second delay
"Chu" (with this one softer than the first).

Normally I just ignore them, but today I don't feel like working so I'm trying to figure out what they are. I looked in my windows sounds config, and played each one and none of them sound like these sounds.

I'm running the normal assortment of web design software on both my computers: apache, mysql, outlook, homesite, SQLyog.

Anyone else ever hear this? Anyone have any ideas?

[grandpa]

You should be able to find your "Chi Chu" by doing a search of your drives for all .wav files. I had something similar happen not too long ago, and found and deleted the offending wav file.

[Lex_Luther]

Could be a sign of wireless bugs. Check for strange vans outside with vents on the roof.

[Marcia]

>>Could be a sign of wireless bugs. Check for strange vans outside with vents on the roof.

Bugs like in "wearing a wire" or wire-tapping or surveillance?

[bcolflesh]

My speakers tell me to set fires - consider yourself lucky.

[Key_Master]

Speakers can often pick up interference from CB radios, garage door openers, cell phones, and other types of transmitters. Maybe that could be causing the odd sounds.

[vincevincevince]

It's not an instant messenger is it? Possibly run by another logged-in user? Or on another desktop?

[andye]

mobile phone nearby?

[jchance]

Well, its not a wav file cuse I played every one on my computer (there are some good ones too).

Might be my cell phone as its in my pocket all the time (with bluetooth enabled I might add).

I will try putting the cell phone away and see what happens.