pfarrell;370695 Wrote: > > No religion, no snake oil. Show me the science. > > You continue to mis-characterize my position. I'm not saying that > jitter > can't exist or can't matter in any absolute sense. I'm saying that no > one has shown science to show why it matters, what values matter, or > why > their solution is better than marketing spin. > > What metric of jitter is important? > What devices that we are likely to have are examples, good and bad, of > this measured thing? > > > Pat > -- > Pat Farrell
I don't get it - there are ten's (maybe hundred's?), of excellent articles and papers available on the web that explain the negative audible effects of jitter. Some of them are even CD/audio playback specific. How can you not have seen them (they don't all cost $20 although the more 'scientific' papers from AES and IEEE typically do. Maybe you get what you pay for)? Here's a free one written in layman's terms. It does a decent job of tying jitter to audible problems in CD playback. It's not written by a PhD, nor does it have vast amounts of research data to back it up, but it's a start and the nice guy who wrote it is even a German electrical engineer. Click on the colored dots for the tutorial: http://www.jitter.de/english/engc_navfr.html There is also at least one article on why turning off the display of a CDP improves the sound (less spurious noise on the power rails reduces jitter in the receiver chip). There are measurments and everything. Sorry but I don't have the URL at my fingertips. You can do a Google search and find it. It was written by some very nice Italian EE's. (By coincidence there is a similar post by a very nice American engineer here in SB-land that shows the effects of the SB3 display on noise. You might want to look it up). I don't buy that the science of 'jitter in audio' isn't out there. I think you just haven't found it. And as a fellow hobbyist I have to tell you that reading marketing materials and random forum posts probably won't get you there. There is no substitute for digging out the information on your own. Don't make that someone else's problem - go find it for yourself. Pete -- Pete Fowler ------------------------------------------------------------------------ Pete Fowler's Profile: http://forums.slimdevices.com/member.php?userid=20270 View this thread: http://forums.slimdevices.com/showthread.php?t=56425 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
