Currently, Firefox is using espeak for speech synthesis api and reader mode narrator, Which is much worse than mozilla tts (In term of result quality). Is there a specific time for replace espeak with mozilla tts in supported languages? Or an option for choosing between them in a user friendly way?
I don’t know if erogol has time to answer that. Mozilla has decided not to continue putting much effort into voice. They put people on other tasks. It is therefore unlikely that any open TTS tech will be included in Mozilla anytime soon. Sorry.
How bad. Why did they make this decision now that the tree has borne fruit? Even if they replace espeak with mozilla tts now and stop tts development completely, I think it will be a definite improvement in firefox.