@KjetilK and @Peter_Kawa
No it is not Peter, because there as a way beter TTS app that supports ANY device with url input:
This App has many voices per language, settings like speed and pitch and volume, and you can use ssml (speech html/xml).
And, with Muziek Url Omzetter App voor Homey | Homey you can send these beter voices even on Homey itself, so you System has one general voice.
See [TUTORIAL] How to make a Great Public Announcement (P.A.) System with any device! for more info.
This works great on f.i. Sonos, but also on my TV’s: all can be send a url which opens and plays (in a browser or app) the speech url.