Why is my microphone not working?
Figured out the problem with my mic not working in Duolingo. I selected that I did not want to use my microphone when it again did not provide the input as it should have. I then exited the lesson and went to my settings and selected to turn my mic back on. It now works again. So, the problem is within Duolingo but that was an easy work around.
I use strictly use Safari. First try going to your settings on duo lingo and make sure 'microphone' and 'speaker' are both turned on then try and make sure your flash is updated and is set to allow. After that I suppose try restarting your browser and see if when doing the lesson when it's your turn to speak you should see a big blue round circle with highlighted white microphone for you to speak. I think that is the updated, because before it would read 'record'.
I see lots of old threads on this. I am also having this problem on a Mac (OS 10.11.6) across four browsers (whereas previously it was working consistently in Chrome and untried in the others): Chrome (58.0.3029.110), Safari (9.1.2 - allow Flash screen hangs), Opera (45.0 - does not appear to be "listening" when mic is clicked) and Firefox (46.0.2 - mic button animation was making it appear as though sound was being recorded, but it was never accepted until suddenly it was accepted every time; hoping it keeps working in that one). A mic check outside of DuoLingo shows the mic itself is working well.