Currently Being ModeratedApr 11, 2013 9:31 AM (in response to alexfromipswich)
The audio should be from both OA and HDMI the same. Check your OA cable is working (red light on cable tip) and or another device in the sound system OA port. I don't think it is a settings issue I think it is likely port or cable. I find OA very temperamental and every time I move the sound bar I end up having to check the connection.