Does this directory still need to be created if I’m using Home Assistant supervised? I used Samba to add my mp3 to what I believe is the default media directory. Using this tip for locating the URL I get:
http://192.168.1.100:8123/media/local/airhorn.mp3
But no luck getting it to play on Sonos. I can see and play the mp3 in the Media Browser when I select Web Browser with the “Choose Player” option in the upper right hand corner.
If I try to go directly to that URL in my browser I get “401: Unauthorized” and when I open up my Sonos app I can see airhorn.mp3 listed as the thing most recently played but if I hit the play button I get “Unable to play ‘airhorn.mp3’ - access is denied.”