Comment 4 for bug 1769936

I can confirm this. I tried to record myself speaking and it was as if everything were overamplified to the point that only distorted noise can be heard.

Lowering the mic volume helps. Setting it to "base" in puslseaudio volume control results in audible dialog with just a bit of noise in the background. Still, my voice felt too quiet, and the quality is not the best, so it's far from an ideal solution, just a workaround until a fix comes.