how i can use the microphone or is not implemented yet?
i don't think citra has a microphone support yet.
which probably brings the need to add something to bypass the microphone until the microphone can be actually emulated
So i cant do anything about it in fire emblem fates?
Since Citra is alpha software, some things aren't implemented. The best bet is to either 1) play the game on your 3DS, or 2) load your Citra save on your 3DS, do what you need to, dump the save from your 3DS back to Citra.