Originally Posted by SoundofMind
I agree that those producing the content are too often slacking and lacking. On the other hand, I am unconvinced that 192K on the final product adds any audible benefit whatsoever. The quality of all that goes into making the recording (recording technique, mastering, etc) makes all the difference IMO/IME. I have redbook CDs (44.1K/16bit) that I am hard pressed to distinguish from SACD; many Stockfisch CD offereings like Sara K. "Waterfalls" and Chris Jones "Roadhouses and Automobiles", offer exc SQ. I select these examples because acoustic guitar/vocal recordings with a large dynamic range and well-executed musical artistry content are both enjoyable and offer a stringent test for any medium and system.
YMMV but to my old ears, there's not that big a difference between CD layer and SACD stereo layer on high-quality discs like Allison Krause "Forget About It" or "New Favorite" when I do a level-matched A/B. The 48K/24 DTS tracks of Allison Krause "Live" DVD sound pretty darn close in SQ to the same tracks on SACD, though recorded live on stage. It's all superb.
As to both audio and video, there is no question that higher resolutions offer dimishing returns as to PQ or to SQ. The bedroom monitor, often a 35 inch LCD, will likely not see much improvement with 4k, but a 120 inch front projector screen might well see some improvement, just not a SD vs. HD improvement. But, my point on video is that I paid for deep color in my equipment purchases. I doubt it is going to offer anything other than a modest improvement, but why is it nowhere to be found?
As to SQ, I am a classical music guy who is enraptured with hi Rez Mch. I have huge CD and vinyl collections I no longer listen to as a result. Hi Rez Mch trumps those easily in terms of approaching concert hall realism. Yes, there are many good CDs, but they do not, of course, offer discretely recorded Mch, which is a big difference maker.
I am generally quite pleased with the sound of Mch Blu-ray, even at 48k/24, and especially in DTS HDMA, which generally offers better sound than LPCM. Dolby THD is almost non-existent on Blu-ray, but can also be quite good. Again, no question as to diminishing returns from higher resolutions. But, having heard some audio- only Blu-rays and downloads at higher resolutions, I still think 96 or 192k offers somewhat noticeably better sound. They are just not available on A/V disks, with a few exceptions, in spite of the fact that my system has that capability.
While we are at it, there are only a few hundred 7.1 channel Blu-rays out of the thousands released. Again, the difference is not huge over 5.1, but the capability is there in many systems. The disk releases just do not have it for the most part.