DISREGARD, found it.
Go out of the Skybox into the Oculus Home interface, into the Audio Settings, set both to PC Default, then close and open the Skybox.
goransinadinovic Hi there,
Glad the issue was resolved!
If you use Rift or Steam version, you need to check your Rift/Steam audio settings(audio output device) and your computer sound settings.
Feel free to contact us if you have other concerns.