I have a Sony BDP-S580 through a Denon AVR-1312 AV surround receiver and a 55” LG HD TV all connections are with HDMI cables. When I try and play a Blu-ray or DVD, I can't hear voices only the background music. When watching the TV the sound is OK. I have upgraded the BDP-S580 to the latest firmware and reset the player to the factory defaults. Any suggestions for a fix would be greatly appreciated.