Ok I finaly found solution. It was problem with base_url and NAT loopback. My router doesn’t support NAT loopback so it was problem when mopidy try to play tts from xxxx.duckdns.org:8123…
I don’t know how to deal with NAT loopback problem (any sugestions?) so I try somethig else:
I change base_url to hassio_IP:8123 and mopidy has no problem playing tts.
Well… a don’t know if changing base_URL to hassio_IP:8123 instead of xxx.duckdns.org:8123 will affect any other devices in HA but for now it looks good?!?
Another thing is playing mp3 in services…
This also didn’t work for me… produce some errors because it couldn’t find file
This works for me:
Hope it’s useful for someone…