Andy8421 wrote: > I am not sure I agree on jitter. My simplistic view of a digital audio > stream is that if plotted on a graph, the 'y' coordinates are provided > by the digital amplitude of the sample, the 'x' coordinates are implied > by the (assumed) regular sample period. So to plot a point on the graph > accurately, you need to have both x and y coordinates correct. Having > the sample at the wrong time is just as bad as having a sample that is > the wrong size.
Right. I understand how jitter could be important in theory. I just don't believe that it actually is in practice for real audiophile gear or for 99% of humans listening. Gross clocking errors would be bad. I just don't see evidence that we are getting them. Rather, I see it as a marketing phrase that can be used to claim that one box is better than another. When you have "perfect sound forever" its hard to justify spending $10,000 for a transport over the $20 transport in your PC. Now if the CD was designed today, instead of way back before microprocessors were common, it could have been made better, and the possibility of jitter designed out. But that didn't happen. This is personal belief, but its based on the fact that I have never seen any engineering evidence that jitter is a real problem. -- Pat Farrell http://www.pfarrell.com/ _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
