24/96 upsampling vs. 24/192 upsampling vs. no upsampling?


I am interested in digital upsampling; however, I have never heard a DAC or CDP that upsamples. Can anyone tell me their thoughts on 24/92 upsampling vs. 24/192 upsampling vs. no upsampling at all (sonically)? Is upsampling that much better? How is it different from the 2x, 4x, and 8x sampling players of the past? Currently I use a Camelot Uther 20 bit DAC in my system, and a 24/192 upsampling upgrade will soon be offered by Camelot in the near future. I am wondering if it is worth it to upgrade. I am also interested in the Perpetual Technology digital gear. Thank you for any insight into these questions.
128x128tok20000
Thanks for keeping the informative posts coming.

I found some interesting links abount Perpetual Technology digital gear:

http://www.jeffchan.com/audio/p-1a-vs-d2d-1.html

http://www.jeffchan.com/audio/daif.html

This is the first negative stuff I have read about Perpetual that seems credible.
This reminds me a lot of videotape or film. In video there are 30 frames per second. If you try to improve this image (using the original 30 fps) it can only be assumed that you MUST be adding (THAT which was not already THERE to begin with).

One could duplicate each frame an additional 1, 2, 3 or however many times, and play them back at a faster rate. This might impart a "richer" more real looking image, but it's still only made up of what was there to begin with.

One might compare two consecutive images and interpolate what an image between these might look like and insert this creation. THIS still doesn’t give you higher resolution.

To my way of thinking up sampling isn't real sound improvement, its sound smoothing. The very nature of interpolative up sampling seems to fly in the face of what many folks on this site claim to desire: The BEST… The most accurate reproduction of the original sound - TAS.

I suspect that THIS version of “up sampling” being interpreted as “hi fidelity” is why so many folks continue to tout their vinyl.

It only stands to reason that the only way to gain higher resolution is to sample more frequently (capture more information) and play this information back at the appropriate corresponding rate(s).

So... 24/96... 24/192... HELL YES!
I just got a HDTV set which does line-doubler and the picture is terrific. I have not heard the CD with upsampling yet, however, I think it should be a positive one.
Tok20000, there is plenty of negative discussion on the Perpetual gear on http://AudioAsylum.com. Seems that Perpetual is having software problems with some customers returning their gear several times for updates with varying degrees of success.
I found it interesting the experiment the guy did at the webpages that I listed aove. It seemed like conclusive proof (if he was telling the truth) that Perpetual Tech gear was not reproducing music accurately.

Anyway... just my 2 cents.

Keep up the good comments.