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In Reply to: What is the benefit of SACD if the original master is not DSD ? posted by Pierre on November 29, 2000 at 12:36:08:
You will get closer to the original master than PCM , PCM requires an AD stage (Essentially EXACTLY the same as the SACD DSD signal which is basically the raw noise shaped output of that AD) , however SACD will play back that signal (which is directly stored on the disc) with a bit of filtering , PCM requires that that signal is decimated and *stored* as a decimated (dropped sample) DSD output and then it requires a DA stage with oversampling , filtering and further noise shaping.
Thus pcm requires a few more steps to playback.
Think of it like this , DSD is the raw meat , you can process it many ways , simply cook it etc , PCM is already processed and one has less options what to do with it thereafter.
DSD is a great archival method for the aforementioned reasons,
However it is NOT as simple as all that , but to go any deeper into this requires a lot of time and that you know a bit about AD convertors etc , there is a VERY good article on conversion at headwize.com which I suggest you read , it explains things rather well
Rodney Gold
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- Re: What is the benefit of SACD if the original master is not DSD ? - Rodney Gold 20:13:31 11/29/00 (0)
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