I upgraded to the 0.6 SDK and I am using Unity 4.6.6. Everything works fine in the editor, but when I build to the Gear VR all the audio will play too fast, like your are seeking through a CD. Everything visual runs normally. I tried downgrading back to the 0.5.1 SDK and also to Unity 4.6.5 which worked temporarily, but it randomly started again and now it is playing too slow. The pitch of the audio is not affected, just the speed.
I have now upgraded again to 0.6 and 4.6.6 and the audio is still too slow. I am running Kit Kat on my note 4. Does anyone know what the issue is here? Thanks in advance!