Post by craigl59 on Oct 17, 2016 16:42:11 GMT -5
However, that requirement is part of the SACD copy protection scheme, and goes with the SACD media in specific..... DSD audio that originates from something else, for example a file, doesn't have that restriction.
(I have no idea how the individual players may feel about it - or whether they make the distinction.)
The discussion has already been done to death, but DSD itself has no compelling technical advantages over PCM.
DSDx1 is superior in some technical details over the 16/44k PCM used on CDs - but not over 24/96k PCM.
In general, as a RECORDING and REPRODUCTION medium, DSD is about equal to PCM, and it's about equally difficult to convert into analog when you want to play it.
However, since it has severe limitations in regard to editing, it has never made it as an editing standard, and has been a commercial failure as a distribution medium as well.
(Sony has made the DSD format license available to all comers for free - we can assume they did this because it wasn't making them any money.)
However, the hardware in a given DAC may be optimized to do a better job with one or the other.
So, for that particular DAC, it may make sense to convert all incoming signals to the format it prefers.
(It should be possible to design a DAC that will work equally well with both - but that doesn't mean that all of them are.)
You also need to understand that ANY time you convert between sample rates or formats you introduce tiny differences to the signal.
Furthermore, there are usually choices involved, which involve tradeoffs, any of which may or may not be slightly audible.
However, in most cases, these changes aren't better or worse - just different.
(And, since certain tradeoffs may suit your personal preference better, or work better with certain source material, choices can be useful.)
Another factor is that SACDs are mastered with a different target audience in mind.
People who buy SACDs and DSD files expect "a more audiophile sound" - whatever that means to them and the engineer who mastered the disc.
There is also different technology involved - SACD mastering offers less flexibility and fewer options.
All of these factors lead to the fact that it isn't unusual at all for the SACD version of an album to be mastered differently than the PCM version.
And all of this leads back to the question of what exactly you mean by "quality".
To answer that original question......
Since information cannot be created, if by "quality" you mean "information accurate to the original", then NOTHING can give you more quality than was there in the original file.
At most, by converting to some specific format or sample rate, you may be allowing a specific DAC to do a better job of causing less damage to the information that is present.
(This is why most modern DACs do internal oversampling; because the oversampled signal can be converted more accurately with less alteration by the reconstruction filters.)
And, since each conversion may alter the sound a little bit, you may simply like the way audio sounds after being passed through a certain conversion process.
(And it's the job of the marketing department at any company to convince you that the differences in their product make it better.
And, if you're the type of person who simply likes more choices, and more options to choose from, then DSD is simply one more option to choose from.
I should also note that you need to be careful when reading white papers..... many of them are quite old and digital audio technology changes quite rapidly.
One of the linked white papers compared DSD with single-bit Delta-Sigma converters.... but virtually all modern DACs use multi-bit Delta-Sigma converters.
Likewise, it used to be common to compare SACDs to CDs (DSDx1 to 16/44k PCM); but high-resolution 24/96k PCM audio files are becoming quite common these days.
It is my understanding that the Oppo CAN receive DSD via DLNA (over Ethernet)...
And this is claimed to work with some DLNA servers (perhaps some versions of Twonky).
However, I've read that it won't work with jRiver.
(If you Google "Oppo DSD DLNA" you can find a lot of discussion and suggestions on the subject...)
You could try HERE for starters:
This is extraordinarily clear and has explained many questions about DSD I have had for some time.
Would suggest, however, that you amend your consideration of editing happening in the analog world. While this can happen, many of us that have been using 96/24 since 1998 or so have always edited with plugins and DAW tools that maintain that signal rate throughout the entire editing process.
Recently have had several conversations with production people about the value of upsampling. They have agreed with you that, literally, "nothing can give you more quality than there was in the original file." HOWEVER, they claim that the advantage to upsampling is in the down conversion -- that, specifically, a CD file upsampled to 192/24, then D/A converted will have better S/N and this can contribute to more transparency and detail. I have noted this myself using JRiver to upsample CDs and have compared the sound with the original source and can hear a significant improvement.
Thanks again for your clear thinking about DSDs.