Why isn't there an option to speak Hungarian?
I grew up speaking both English and Hungarian as a child. I'd like to get better at speaking Hungarian, and would love to have the same microphone features that I have for learning French and Spanish. Will one be added?
I think that only the courses developed in-house by Duolingo developers get audio - about a half dozen (French, Spanish, Italian, Portuguese, German, perhaps one or two more?).
All the ones from the incubator have a different technological basis and never have pronunciation practice, I think, even if they are out of beta: they're just a different platform.
there is audio for most of the text.
At the beginning, probably, later not exactly "most".
For languages (like Hungarian) for which Duo can't find a (decent) Text-to-Speech engine, they hire a third-party company to record (=human voice) the audio for some sentences of the course. And "some" has always been, up to now, 3000-4000 sentences for the different courses with no TTS audio.
3000-4000 represent at best around half of the exercises (for "smallest" courses, in terms of number of exercises)
I think that they are adding the audio now.
The human recorded audios (bought to a third-party company) are added once before the release into beta and that's it.
That's, by the way, one of the main reason why courses stay months at "100% completion" before reaching beta: staff and volunteers have to wait for the third-party company to create all the recordings (then they have to check them and send back the ones with issue... so wait again etc.)