Sound fom RPi

It should work on the Pi 1 and 2, not sure about the Pi 3: Pi

Does kldload snd_driver_load work? That should load all available drivers. A cat /dev/sndstat would then tell you what's actually detected.

kldload: can't load snd_driver_load: No such file or directory

I've obviously overlooked something...

As for getting some sounds out of my RPi, I forgot about mpg123 which does play mp3 through the speaker... But what I'm really looking for is an app where I can generate various sounds which will for example, scare cats away from the garden (which they use as a toilet) :).