I read this old Q&A with Thorsten Loesch about PCM vs DSD
"If we convert from 24-Bit at 352.8KHz (DXD-PCM) to 1-Bit at 2.822MHz (DSD) – we need to throw away around 99.96% of the amplitude information the PCM format is capable off, while we are only having 12.5% of the time domain information that the DSD system is capable of. If we convert to DSD to DXD, that is 1-Bit at 2.822MHz to 24-Bit at 352.8kHz – we need to throw away 87.5% of the time domain information of DSD, though we can theoretically remap all of this into the amplitude domain. So in effect we get the worst of both formats, rather than the best of one."
Q1a) Regarding the bold above (PCM353kHz to DSD64 conversion ), how significant are these points about throwing away amplitude information and having only 12.5% time domain info capacity? Is it correct?
Q1b) Is this improved or worsened when up-sampling to 20 x DSD rates (like the DS does), rather than the DSD64 mentioned above?
Cheers in advance
PS: I’m just ‘playing the ball, not the man’ here. So it’s not so much asking about Thorsten, more just about the technical theory/figures he’s mentioning