DSD vs PCM .. Truth or Myth


Just been reading this article which raises a lot of points and questions.

I found it interesting at least.

https://www.mojo-audio.com/blog/dsd-vs-pcm-myth-vs-truth/

Just think if SACD had been dsd128 and 5 bit? Might have been a lot more successful?
uberwaltz

Showing 6 responses by mzkmxcv

DSD provides no benefit over PCM, the article’s (correct) point in a nutshell.
@Elizabeth

PCM has no issues with high frequencies (unless your DAC has a complete garbage filter). So, DSD is not more accurate, it does have more high frequency noise, you may like it better, that’s not my stance. 
 
EDIT: Not saying it’s a crap format, it’s just that PCM has no shortcomings.
@elizabeth

DSD implementation in my current player is better than the implementation of decoding PCM in the machine I had owned.


What does that mean? How was PCM poorly decoded/played in your system? Did you have aliasing/images?

Plus yesterday’s result may no longer apply tomorrow, no problem. in the real world, they both have average, good, and spectacular implementations..
Not when it’s unrefutable that DSD provides no benefit over PCM from a technical standpoint (I sound like someone with a bone to pick, but it is a fact). DSD is converted PCM anyway
@junzhang10  
 
You can have 5ch LPCM. Some anime Blu-rays use it instead of paying the liscensing fees for Dolby/DTS, same with some video games.
@melm

There is not a single DSD recording that did not start off as PCM. Even if worked on in DXD, that’s still PCM (24/352.8). You can’t transfer analog straight to DSD either, at least not to my knowledge.  
  
Still, my claim about it not being better over PCM still stands. There are no downsides to listening to PCM that DSD can fix, as PCM is 100% transparent (given a good enough bitrate/bit-depth/sampling rate of course; a 128Kbps AAC track on YouTube is different than a FLAC transfer from CD).
@folkfreak

I am skeptical if recording straight to 1-Bit (DSD) is possible. If you have to do any editing at all, it has to enter PCM, as even DXD (the editing format for DSD) is PCM.

DSD is no more accurate “to the original event” than PCM; the very fundamental of digital audio, Nyquist-Shannon, states so. 
 
The difference between the formats are very insignificant. DSD just records quickly if the waveform is increasing or decreasing (meaning a flat waveform cannot be reproduced accurate, luckily we don’t need to worry about that), whereas PCM takes samples that 100% accurately captures the original waveform.