No audio from anything emulated

In the settings>Audio there is nothing under the Audio Devices. And of course I have nothing populating the retroarch.cfg to restore from. Please halp.

Try audio_driver = “alsathread”

No joy. thank you for the suggestion though.

I know this is old but I had the same issue. Opening Retroarch > setting >audio > audio device
Just switch it off of null by hitting left or right.