pfarrell;371175 Wrote: > Patrick Dixon wrote: > > You completely missing the point - to say that one amp is better > > because it has a SNR of 103dB rather than 100dB is nonsensical > because > > it depends not only on the level of noise but it's character too. > The > > same goes for jitter. > > No, if a tree falls in the forest and no one is around, does it make a > sound? is a question for philosophers. Not engineers. > > If two amps measure differently but the difference can't be heard, > they > are the same. Or you are not measuring the right thing. > > But you can't make a claim that the measurements are different and > that > is important, when no one can hear it. > > A classic example: frequency response of a speaker over 40kHz. It may > be > good, but humans can't hear it. It is therefor not accepted to > engineers > that it matters. I think you have to be careful not to be too definitive about what can and can't make a difference. I definitely can't hear 20KHz or 22KHz, but if you combine the two you get a beat of 2KHz - and I can hear 2KHz.
pfarrell;371175 Wrote: > > > I don't think it's science to stand > > around demanding that someone else provides proof for you. > > Again you miss the point. If you are saying "I believe this is true" > but > I can't show any science to back it up", then I have zero problem. > > But if you say "this is engineering, its real" then you have to back > it > up. It no longer beliefs. > > While I've been hearing about jitter for over a decade, every time I > look into it, I see only theology, not science. Until I see science, > preferably from several sources, then its just part of a belief > system. > > -- > Pat Farrell > http://www.pfarrell.com/I'm not sure which bit of the 'science' is missing > for you. Jitter is clearly a real phenomenon, and the mechanism of how converter clock jitter affects the output signal is clearly understood, so the only dispute can be in what level of jitter is audible in a digital audio system ... and I just don't think the research to define that has been properly done. -- Patrick Dixon www.at-tunes.co.uk ------------------------------------------------------------------------ Patrick Dixon's Profile: http://forums.slimdevices.com/member.php?userid=90 View this thread: http://forums.slimdevices.com/showthread.php?t=56425 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
