Mic doesn't work in game

MagnumSkyWolf​ I remember Sea of Thieves randomly doing this to me, and the solution I've found, (which hopefully works for you), was to manually set the sound settings in the Window Settings.

Note: This guide will be for Windows 11, (if you're on Windows 10, its a bit different, but it should work the same):

1. Open the Audio Volume Mixer
   - This can be done by either searching for "volume" in the Windows Search bar and then clicking on "Sound Mixer Options", or by opening up the Windows Settings, then going to System > Sound > Volume Mixer.
   
   This is the Window you want to see:
   
2.  From there, you want Apex to be opened so it will show up in the list. Once you find it in the list, click on the drop down arrow:
3. Change "default" to your headset/mic for both options:

   - If that doesn't work, you may need to reinstall your headset's drivers, (with Apex closed), restart your PC, and then hopefully the game would recognize it as a valid headset/mic.

   Note: My game is also doing the same thing where the audio threshold isn't picking up audio, the mic icon is appearing, but other players are able to hear me.