Dolby TrueHD

Hi, A few weeks ago I bought my self a beamer (OPTOMA HD141X) and a surround audio system(PHILIPS HTB5580G). I use my Playstation 3 & 4 as mediadevices and play mkv-files from a usb. For now I have the hdmi-cables going to my beamer and from my ps3/ps4 I use a optical cable to route the audio...