Home Digital Drive

Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

Re: Your player already has fairly low jitter measurements

*** I can assure you that there are certainly examples of universal players tested by Stereophile where this was *not* true ***

Any examples? :-)

*** I believe that this is a flaw with the test (or its implementation), and not the result of faulty analysis. ***

At the end of the day, what the Miller unit measures is a player's response to a specific test signal. Whether or not this is indicative of underlying "jitter" is debatable.

It's easy to downplay or dismiss these measurements and say they are not relevant. However, the presence of artefacts in any test signal indicate that something is wrong (whether or not that something is "jitter" or not), and if a player does not perform well on this (or any other measurement) I would be worried. If it was my design, I would try and find out why. The answer may be jitter. But even if it is not, it's worthwhile addressing.

*** We already have one data point that shows 100% variation in the results of the Stereophile test on the exact same machine. ***

There are also examples where players give wildly different results depending on whether upsampling is turned on or off, or optical vs coaxial, etc. I would also be concerned if a player exhibited variations in response to a fairly simple test signal. It indicates something somewhere is not quite right. Rather than blaming the "test" as faulty, I would be interested in understanding why this variation occurs.


This post is made possible by the generous support of people like you and our sponsors:
  Analog Engineering Associates  


Follow Ups Full Thread
Follow Ups


You can not post to an archived thread.