I searched for information on this and couldn't readily find an existing thread. I wonder if anyone has done any measurements of the content of a DTS-HD MA/TrueHD lossless track and of its counterpart DTS/DD 5.1 lossy track and then subtracted one result from the other to arrive at a definitive answer as to what the difference actually is?
Despite having a flagship AVP (Onkyo 5509), good amps (Emotiva XPA-3/UPA-2) and very good speakers (M&K S150s/SS150s), I find the difference between the audio formats to be more subtle than I would expect them to be considering one is lossless and the other lossy. I guess it depends on what exactly is 'lost' in the 5.1 encodes.
Has anyone done the measurements? If so, have they published the results? If not, is anyone willing to do them?