Ding Or Ping Sound From Mbp

[challiman]

I've had my MBP since June and occasionally I hear a DING or PING sound. I usually can't see or find any reason for it, though today I had a message from MSN Messenger that someone wanted to add me to her contact list.
I have no idea what the sound indicates, but it does seem to be happening more frequently.
I tried to do a search but nothing came up.
Thanks.

 

[Makosuke]

Most common possibilities:

"New mail" ding--the default is a crisp ding sound.
Your IM program makes a sound when a contact comes online or goes offline (I've never used MSN, so I don't know what sounds it might make).
It's the default error beep, and you're doing something that causes a beep (clicking something you can't click on at that moment, hitting a key that generates a beep, etc).
Maybe a clock app that's chiming on the hour.

 

[Jisuo]

Do you have an xbox?

 

[jampat]

Are you running transmission or any other file sharing programs? We need to know what software you are running as it is likely that the sound is being triggered by software not OSX itself.

 

[newdeal]

...

I find it sometimes makes a noise when you press a combination of keys that isn't a keyboard shortcut for the current program