Guys, this is sooo easy, I can't believe it took me this long to figure it out! xD They didn't really announce it if I can tell, but the comment in the beginning of that Youtube video is right! Just go to your device settings in Oculus Home and click on your Rift, then under audio settings click the carrot and select (mirroring). Done! ^^
------------------------------ PC specs - GTX 1070 (MSI AERO); 16GB Corsair Vengeance DDR3; intel i5-4590, MSI motherboard (don't remember but it was a combo deal) and an EVGA Supernova 750W semi-modular.