opaqueice;332306 Wrote: > 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. > > > > True - but it's effect on the analogue output is as I described.
I was thinking about your second case. My Altmann Jisco does something similar by "decimating" (or randomising) the jitter just prior to the DAC (I think). -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocom full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber & Chord cables ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=50147 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
