On Sun, 23 Jul 2017 11:31:11 -0500, Puffer Belly wrote:
> I'd just like to point out that DSD sample rates are based on multiples
> of 44.1 kHz, so DSD64 is equivalent to PCM sampled at 88.2 kHz, DSD128
> 176.4 kHz, etc.
>
That is actually entirely incorrect. That is just some modern bullshit
some anti-DSD guys came up with to bash the format.
DSD is not the equivalent to anything PCM....the two are basically like
gasoline and diesel...similar products with an entirely different level of
operation.
Equivalence in PCM is made up...much in the same way we make up a
horizontal resolution for analog video back in the day when there really
was no such idea.
IF what you said had any kind of truth to it; than the CD players of
yester-year which worked with 2x, 4x, or 16x oversampling would not have
been able to produce the sound quality they did....as you yourself said
DSD64 is the equivalence of 44.1khz.
BTW, any time you see something like "oversampling", or "MASH", of "Pulse
Edge Modulation" on a CD player...it means it's using a delta-sigma 1-bit
modulator internally. It's taking the 16-bit data from CD and modulating
it at 1-bit....at a much slower rate than DSD.
DACs up till about 10 years ago were using 1-bit DS modulation; these days
the higher end models are using multi-bit delta-sigma.
No one has made a DAC that can handle more than 16-bit samples that's not
an oversampling design.
DSD64 just means it's sample rate is 64 times the normal CD rate. Why was
the CD sample rate held to a standard? Because it was the first time they
actually standardized a sample rate.
Actual performance of any DSD rate depends on what created the DSD stream
and what is playing back the DSD stream.
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