Voice PE TTS not working

[cobalt stag]

Hi all, i have an issue with my Voice PE text to speech. The unit won't play the audio. I see the blinking of responding, but never have i heard a response through the speaker of the unit. Using a external speaker also doesn't work.
I already checked online for answers. I use the homeasstant internal url on automatic setting. Also, i tried factory defaulting the unit several times. I also tried reapplying the firmware. Using other languages also gave no result.
I use the settings in the screenshot.
When i debug, i see the tts_output being generated to a .flac file under /api/tts_proxy/xxx.flac

[short gulch]

So did you try running that FLAC?

[tawny belfry]

Can also try on the companion app and see if it works there as well

[cobalt stag]

Yes, i copied the file to my local pc, it works on there @short gulch

[cobalt stag]

I already tried that. I set up the unit through the companion app @tawny belfry

[tawny belfry]

But I mean, does it work in the companion app?

like if you trigger voice from the companion app, do you hear a reply?

[cobalt stag]

Yes when i try 'play audio' at debug it works in the app

But it will play the audio on the mobile phone tho

This is the debug output of me asking the time (in dutch: 'Hoelaat is het?'):

[tawny belfry]

So What I mean is, if you ask the time from your phone, it plays an audio reply of the time, right?

[cobalt stag]

Yes correct that works

Couldn't copy the data in here so here is a .txt file

[tawny belfry]

SO then I think it is like formatBCE said, in your debug when you get the link to the .flac file, you may want to grab that file and see if it plays

something could be broken with the tts proxy

can maybe try to purge tts cache and restart HA and see if that helps it

[cobalt stag]

I already did that, i copied the file to my local pc and when i play it there it works

[tawny belfry]

Hm, maybe a network issue of some kind on the voice PE, may need to hook it up to USB and monitor its logs

[cobalt stag]

Is there a how-to? Or how can i monitor its logs?

Both devices are on the same network without a vlan

[cobalt stag]

Clearing tts cache and restarting HA had no result unfortunately

Found the solution. Seems like a proxy issue indeed. (I use ngnix proxy with lets encrypt). I changed my internal url on home assistant to my domain url for home assistant (same as external url) and then it works!