Add-on Sound on new alert


I think could be a beautiful and useful addon, something that when you receive a new alert/notification on the Forum, the browser plays a little alert (as a "pop" o something like) so if you have (for example) the forum page opened in the tabs, but it isn't the tab that the user is actually exploring, immediately he realizes that he has new alerts on the forum and so comes back to the forum tab to see what happens (and maximizes the user reactivity in the platform).

It's possible to make something like this?