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In Reply to: Re: SACD equilivalent sampling rates posted by Mars on January 20, 2001 at 23:53:14:
Essentially the noise shaping curve will "set" the resolution at certian points , in that the noise will increase , as noise increases one loses resolution in terms of the softest vs loudest sound that can be heard.
So the answer to your question re res drops no's is not certian unless one has access to the curves , which I dont have: If the SCD-1 will allow a 100khz signal to be passed , as it does , then the noise there cannot be that excessive.
SACD will attain max resolution to well over 20khz and it will reduce according to the curve , your speakers wont do 100khz and neither will you hear it apart from there being little or no info on cd up to there as well as the fact that few music instruments wll reach anywhere near there , the output at 100khz is so low it is sort of academic.
There are studies which seem to prove that even tho we dont hear after 20khz , the signal still influences us.As to your 24/192 Q
Errors at 24/192 are actually negligable compared to 16/44 , of the order of 256x less!!!!
One doesnt need to apply dither if one is not truncating , and at 24/192 there is no truncation , oversampling and the fact that the anti aliasing filter is at 90+khz , means that the filters employed in 24/192 vs 16/44 are FAR more benign and gentle.
All in all , on both sides , the AD and the DA process , 24/192 is very gently acted on and will preserve the signal most likely the same as a DSD type process will.
No one has compared the same music/recording/mix via both processes , so one cant say whether the "pcm" method or the DSD method is better. Time will tell whichh remains dominant
Rodney Gold
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