There's no audio in the Tiếng Việt course!
Hi! Today I started the Vietnamese course, and the audio doesn’t work. It can’t be my headphones because I made sure those worked before using them, and I tried it on another device and I couldn’t hear anything whatsoever. Should I report this as a bug?
(P.S, Arabic is in the incubator! :D)
Try it with Camilo's user script "DuoLingo tree enhancer".
You could enable Vietnamese for the right hand side.
Not sure with the left hand side (DuoLingo speaker, Vietnamese-English translations), when you disable the build-in speaker (if you have to).
We could ask Camilo if he can double activate the audio as an workaround, if Google, Bing TTS Co. would work.
Update: I added a comment to https://www.duolingo.com/comment/19654789/Userscript-Tree-Enhancer and linked this thread.