How do I turn the microphone back on?

[avocadobear]

I turned it off because it couldn't hear my responses. I like to turn it back on.

[lolikruckles]

I haven't turned mine off but still cannot get any sound today.

[AbraxunsIllusion]

Where it shows you're profile name (In my case, Azwerth) and picture, you have to hover over that, and select Settings. The options are right there :)

AZWERTH

[avocadobear]

Your answer put me on the right track, but it didn't work quite as you suggested. Hovering over my profile didn't produce "settings" (perhaps because I have a Mac). I clicked on "Edit Profile"; then clicked on "Account." At the bottom of the page, I clicked on "microphone--on." Thank you for your help! (Duolingo should make this kind of adjustment much easier and more obvious.)

[AbraxunsIllusion]

Which design do you have? That may have been the reason.