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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: Re: Appears to be a frequency-locked loop... posted by Ted Smith on August 2, 2006 at 13:37:35:
I was! I see huge difference between the electrical device called PLL
and a microprocessor program acting similar using a buffer,
yet operating at a computing level.I have noticed that quite often parallels are seen between electrical
components and processor programs doing a similar job, but there are
fundamental differences that never really make it a good comparison,
like calling buffer-based rejection a low-pass filter.So Lavry does use the huge buffer to reject all incoming
jitter, yet at the same time it keeps changing the output clock
which could theoretically be argued as being low-frequent jitter.Then again, hardly a change, and only every ten seconds, sounds like
a pretty solid approach. I just wonder why the hell he needs ten
seconds latency. With ten seconds latency you should be able to
playback an entire CD with an atomic clock no matter where the
incoming clock comes from. The clock drift should never amount to
ten seconds even after an hour or two.
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Follow Ups
- The huge buffer approach in action - that's, my name 01:47:28 08/04/06 (0)
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