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No filtering is just a case of unengineered bad filtering

"One is that the best treatment for jitter is no treatment and, more generally, that the best overall treatment is to not upsample or put digital or analog filters in the way of any part of the CD's signal before or after converting it to analog."

If there is no filtering (digital or analog) in the DAC on is just sending high frequency c*** into one's amplifiers, speakers and possibly one's ears. What comes out will in no way be an accurate reflection of what was recorded. The presence or absence of filtering has nothing to do with jitter, it will still sound like c*** on a system with perfect clocks.

These solutions are common when technicians who have been promoted to "engineer" attempt to design systems without benefit of a proper engineering education, e.g. who lack the necessary background in electrical engineering and mathematics. There is little point in arguing with these people, IME, because they usually have a chip on their shoulder. These people would be better advised to recognize what they don't know and make the effort (it will be a large one for most people) to learn what they missed by an inadequate education. (In the large company where I used to work we had a program for technicians wishing to become engineers. We made sure that these people had learned the material they would have gotten had they been fortunate to have gone to engineering school.)



Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar

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