Here's an interesting problem....

My MacBook Pro is making beeping sounds which seem to be getting more frequent. I heard them for the first time this afternoon and now I've heard them again possibly 10 times in the past hour.

I have no idea about the source/cause of the beeps, but I'd love to find out. In fact I'd love a general solution to be able to find out which program or process is responsible for making any audio output.

Has anyone seen such a program available? Even if it were something that output a note to the console, it doesn't need a GUI. Basically something that would sit idle and then make a note of any sound output event, at least by labeling the source app/process and the time.