Ah, well now we enter the realm of human discriminatory powers. The proponents of SACD, DVD-A and other high res media talk about the technical abilities of the media and can use technical and mathematical models to boost their arguments. What these proponents have singly failed to do is PROVE that humans can easily and reliably detect the difference between High res and red book. Bearing in mind we stand in a Science forum, where the burden of proof is more substantial , and where DBT debate is allowed (lucky us !) none of the manufacturers have ever provided any controlled listening tests to show that where the only difference is between 16/44.1 and 2.3mhz DSD or 24/96 PCM that listeners can hear the difference.
Only one peer reviewed controlled study has tested the ability of listeners to hear the difference between high res and red book. With over 500 trials and 60 trained listeners it was found that on coding scheme alone (high res vs red book) not one listener could reliably detect the difference. This paper predictably caused a knee-jerk pooh-poohing from the subjectivist audiophile press and subjectivist hifi forums, but none have yet provided strong counter-evidence i.e controlled listening tests to show that listeners can hear the difference in coding scheme alone.
The criticisms of the paper (Meyer and Moran, 2007) fall into two categories,
1) The kit was not good enough, i.e it is not enough to have a SACD or DVD-A player it must be a really good one or you will not detect a difference, actually one of the players was really good technically, what the critics mean was expensive enough. Think about this, they are saying there is nothing fundamental about these formats that is superior only when you get really good examples of them will there be a difference, some CD players can hit SNR of 120db !
2) Some of the software was not truly high res being taken from older sources. Okay this is partly true, some titles used were from older sources so not truly DSD or 24/96 from inception, however some were high res born and these were still not detected.
Add these two together and you get "High res is cleary audibly superior, oh but only on some selected examples and on really expensive kit" , this looks like an awfully familiar argument
Originally Posted by ramicio
I just wish this nonsense of Redbook being enough anyone needs would end. We have more storage and bandwidth than ever, why not take advantage of better resolution?