_{Official ZPE/YASS documentation}beep

beep (integer frequency, integer duration) ⇒ null

Send a beep sound effect from the system.

Notes

There is more on the underlying implementation at https://gist.github.com/jbzdak/61398b8ad795d22724dd and https://stackoverflow.com/questions/577724/trouble-playing-wav-in-java/577926#577926.