I wasn't suggesting that there is a "requirement" exactly, to have a $10K system to benefit from the new sound formats, but since the difference isn't as big, you will likely notice it more on a better system to some extent. That doesn't mean on a "normal" system, there isn't a benefit.
Oh, I wasn't suggesting, with my comment of "with regard to your paragraph..." that you were implying something -- I was just kind of commenting in that fashion; still, I don't really hear much, if any, difference between a
well mastered DVD soundtrack and, say, a Dolby TrueHD/DTS-HD Master Audio variant. Does
The Dark Knight sound good in Dolby TrueHD? Absolutely, will wallops of wall-rattling LFE my Polk sub can't even take...but, I have demoed the default (when you start the disc) Dolby Digital track on the Blu-ray, and to me, it sounds every bit as involving, wall-shaking and aggressive as the TrueHD mix. Maybe it's just me and my ears, but I have been reporting on this phenomenon ever since I began reviewing the high definition titles.
What really gets me, though, is the fact that I hear no discernable difference between the lossless Master Audio tracks and their core DTS counterparts -- a good example is the remake of
Taking of Pelham 1,2,3...I was running this Blu-ray's Master Audio track as a stripped core DTS mix before I got the OPPO. When I got the OPPO, and was exposed to the full lossless Master Audio track, bitstreamed for my 605 to process and decode, I heard absolutely NO difference between it and the core DTS stream.
Now, perhaps there isn't much difference there -- some say it's just the lossless "extension" that adds some elements into the mix to make it more engaging, but I simply do not experience it on my system.
LFE and separation are the areas I notice the improvements. Even with DVD, it was obvious with full bitrate DTS tracks, that a higher bitrate already made a difference.
If you mean like comparing a DVD soundtrack from a Superbit disc, with higher bitrate audio and video compression schemes, with a non-Superbit title, then yes, I have heard improvements there as well -- but again I don't feel it's tremendously better. And I have a LOT of titles I replaced on Superbit so I was able to compare their non-Superbit versions with the DTS tracks on the Superbits...
An example: In my opinion, the DTS mix on the
Spider-Man Superbit didn't sound much better, or any different, to me than the Dolby Digital track of the original standard DVD release.
With current tracks, it really depends on the mix and the master. If they were done well, then even at a lower bitrate, you can end up with a great sounding mix. I have some DVDs that still sound amazing.
True --
Cloverfield on DVD comes to mind here, which I own, and it contains a wall-breaking Dolby Digital 5.1 mix. Also, the DVD release of
Casino Royale sounded EVERY BIT as good in Dolby Digital as the Blu-ray's TrueHD track in my opinion...perhaps even a tad bit louder with more LFE.
At first, I wasn't sure 1080p was really a big improvement either, but after watching enough HD DVD and BD movies and then watching a SD DVD, I could really tell where the benefits were. Since they are smaller with the audio in most cases, they are likely even harder to differentiate. There is no doubt in my mind that the new codecs are better, but what I was getting at is, is that small benefit really worth it?
This is a very good question you pose at the end -- but with regard to your 1080p observations, that's something I have been trying to make people understand...that the visual sense is always going to discern something much more quickly and obviously than the aural sense. Or, to put it better, audible improvements are much more subtle.
But don't get me started on the whole 1080p being better thing -- I have my own feelings on that one. Many titles I replaced on Blu from DVD didn't look any better to my eye than the DVD, notably
Independence Day which to me looked like the DVD transfer with added film grain.
Of course, there are all kinds of explanations from the studios regarding this; supposedly, Fox used old masters when encoding the BD transfers for films from this era, including
ID4 and
Fight Club, so the BDs didn't look all that great.