This extension allows you to output tones through your device. It supports the following functions:
-
function PlayTone (double frequency, int duration)
- frequency in Hz, duration in ms
-
event ToneFinished (double frequency, int duration)
- Gets triggered when a tone finished playing
Very helpful is this table, e.g. at Wikipedia
I noticed too late that there is already an extension by @Juan_Antonio, but hey, mine has an event 
As always, the extension can be found in its GitHub repo.
Changelog
2018-05-04: initial release