Carl, Jeff Kalt didn't say upsampling is hogwash, just that it is not a "new technology" and is identical to oversampling. The jist of his e-mail (as I interpreted it) is that oversampling (or upsampling) allows the use of more sophisticated (and usually proprietary) filtering algorithms, preserving the frequency/phase relationship that lesser filters muck up. He did admit that mfg's are using the term "upsampling" as a marketing ploy to draw interest. For Jeff Kalt's honesty (as well as his technical genius), I greatly respect him. As audiophiles we are still left with the same chore: find the components that do it for us. I, for one, am going to give Resolution Audio a crack at my money!
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- 50 posts total
- 50 posts total