Microphone not working

My microphone is not working ingame for some reason.
I have:
*Checked to see if my microphone was actually plugged in.
*Tried to use both the back and front inputs on my case.
*Checked Steam>Settings>Voice. It detects my microphone.
*My microphone is not muted, it works in skype etc.
*I have tried changing the keybindings.

I probably tried other things aswell, cant think of more atm.

Anyone know what to do?