DSD is sort of like perceptual encoding on steroids.
Less dynamic range at the top. Pushes noise up to the top of the frequency spectrum.
The specs even with the vanilla flavor are equivalent to 20bit in the meat of the freq range... and if I recall correctly, I think it gets around 4 bits above maybe 22k or so. Which is pretty good. But not GREAT. The newer flavors of DSD up the specs quite a bit.
It doesn't really pass the smell test tech wise... and seems like a real dumb hack "just because you can" but I am sure that there can be good results with it in certain contexts.
Well, it doesn't function in any way like perceptual encoding, (if you were being literal).
It was never intended a anything other than a proprietary archiving
format, when it failed at that it was the job of marketing to recoup all
You've hit upon most of the issues technically, it's simply oversampled 1 bit audio with tremendous HF contamination and a dynamic range that is inversely proportional to frequency.
This should never fly with audio professionals, but the fans seem to be more of the "magical thinking" cult than audio pros.. It's certainly not "hi res" even though it's *advertised* as such.
I find it just doesn't sound as good to me as PCM audio,