When Your Mac Keeps Beeping At You

Hi there, if you press VO+F1 twice, at the top of the menu that pops up, there is a system dialogs option. Go into there and you can see what dialogs the system has open requesting your attention. Hope this helps!

One thing you can do if you hear weird sounds being played is to use VO+H to open up help, then type "Sounds" and press enter. You now have a list of all the sounds you are likely to hear and what they mean.

I had this exact problem with the system dialog and this was how I eventually found out what it meant. Hopefully the above answer sorted you out anyway, but thought this was worth mentioning.

The other instance of a weird sound I personally had was that I had accidentally mapped 6 to start dictation which is easy to do if you are using num pad commander and browsing the keyboard settings menu. It took me ages to figure out why it kept beeping strangely as I was moving around. Again probably not your problem but might help someone if they stumble on this post.

Subject line says it. I never thought of figuring out what sounds meant. Must explore this.

This is a stupid one but it has caught me a few times, as it did just now. If you accidentally have caps lock turned on you will get all sorts of weird noises as you move around and type. I was going up and down the sounds in the help menu but still couldn't find it before it suddenly dawned on me.

Apologies for hijacking this thread a little but think others may come here for weird noises so maybe this can save someone some head scratching.

You can disable the system dialog reminder beeps if they are annoying.
In the verbosity catagory in VO Utility, press the announcements tab.
Under when system dialogs are displayed, choose "Do Nothing."
That should fix the issue.