Phil Leigh;332298 Wrote: > Hmmm... > > If jitter really worked like that you could inject controlled, > simulated jitter into a replay chain and see what happened to the > sound...but it's not that simple.
As long as we're talking about jitter at the clock that controls the DAC chip proper, it really is that simple. You can read various white papers on the web about it, or just draw a picture and you'll see why it's true. It's essentially because the timing variations multiply the signal in the time domain, giving those sidebands in frequency space. If instead we're talking about jitter at the S/PDIF input to some specific DAC, things get much more complex, because DACs have differing mechanism for alleviating the effects. But at least the simpler ones tend leave the sidebands, somewhat attenuated - check any stereophile review of a DAC and you'll see them quite plainly. I think the Benchmark works by spreading the jitter power over a broad spectrum, reducing it to irrelevant noise. > Jitter is a variation in the clocking mechanism, not a discrete > analogue artifact in its own right. True - but it's effect on the analogue output is as I described. -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=50147 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
