Yesterday evening we aere about to play some Desert Combat so I invited all to my TeamSpeak server. Ironically all could chat along except me… My microphone seemed to stop working. I tried it on another computer this morning and it worked just fine, strange.
So after doing some more tests I started to suspect the drivers, specifically since in the last update I did in Windows Update there was something about the sound drivers. Rolling back to the previous version of the driver solved the problem, the microphone works again!
Though I was not really satisfied since I had to go back to old drivers. I looked into the VIA forums(the motherboard I have is a Asus A7V8X with the VIA KT400 chipset) and found this thread that indicated to use Realtek drivers instead of VIAs. Downloaded the drivers from here and now it works perfectly fine!