I have set up Google Assistent and Google Cast Service and can cast to the Next Mini from my mobile.
I have also set up a Lovlace UI component
type: media-control
entity: media_player.hall_speaker
And can turn it on (and here a sound when it is turned on). But when I try to play a mp3 from the /media folder using the button in the UI that lets me chose a file the play icon apears breafly but there is no audio coming out of the Nest Mini.
I can access /media using Samba and the mp3 play fine.
Any idea how I can I fix this.
Regards,
Ben