Originally Posted by Daveyd
yes, no, maybe?
Hi Daveyd, this is my understanding as I'm not running 7.1 but others can verify and correct me if I am wrong.
If the BD player is playing a 5.1 TrueHD/DTSHD-MA and performing the decoding (LPCM) the receiver can matrix to 7.1 using DSP listening modes (Dolby EX, Dolby PLIIx, etc...). But if the receiver is doing the decoding (which BD player is sending Bitstream) then there is no option to matrix 5.1 TrueHD/DTSHD-MA to 7.1.
As mgkdragn mention there're not many 7.1 TrueHD and DTS-MA soundtracks out there, vast majority are 5.1.