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Digital idiot wants to KNOW: upsampling?

In my quest for "perfect sound forever" I see that the big rage is upsampling. So how does this work. (The Sine wave graphs in the mags look so pretty) I see D/A converters that accept 96/ ??? Does this mean some CD players put out this? and what if you have an output of 96/??? and you D/A is an old outdated one... does the 96 get downconverted to ??48 (So it seems in my Acdom GDA700?).
I want to gain some sort of understanding how these multiple rates mesh together. Or just point me to a site that helps? Also it seems some D/A's do the upsampling and some just 'accept' upsampled data. I am comfused. Help me (so I can spend another $3000 on a MSB Platinum and not get burned.)
elizabeth

Showing 2 responses by garfish

garfish
1,840 posts
 
Elizabeth; just some search tips: look under 1) over sampling, 2) Pepsi 3) What the heck is resolution Audio. It took me awhile to find a couple of these. Good Luck. Craig
garfish
1,840 posts
 
Hi Elizabeth; I suggest you look up the threads 1) "Up and Oversampling", 2) "What the Heck is Resolution Audio" and 3) Take the Pepsi Challenge".

These were long rambling threads that contained a lot of heated rhetoric and insults, but the threads were essentially on what you are asking about and there is good info. in them too-- if you perservere, eg comments were obtained from some of the best digital designers such as Jeff Kalt of RA, and Kevin Halvorsen of Muse Electronics, and Madrigal Audio also has a position paper on this subject that was quoted.

These are interesting threads from last summer. I'd go into the subject here if you have a few days:>) Good Luck, and Cheers. Craig
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