Text to speech debugging

hello,
I try for day to have tts working on my tv.
I have a Sony bravia (android TV)
I actived the debug mode.

If I lock at the developper tool, the status look like:

volume_level: 1
is_volume_muted: false
media_content_id: >-
  https://xxxxxxx:8123/api/tts_proxy/f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0_en_-_google_translate.mp3
media_position: 0
media_position_updated_at: '2019-11-25T14:50:34.739132+00:00'
app_id: CC1AD845
app_name: Default Media Receiver
friendly_name: TV du salon
supported_features: 21391

But no sound at all.
Can you tell me where I can look for and how to debug ?

Many thanks for your help !
regards
Thierry

Hello,
I had a dns problem.
Now it’s ok.
When I write a text I receive a mp3 file on the tts folder.
But the mp3 doensnt go to the tv…
Why ?

Many thanks for your help.
Best regards
Thierry