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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: Here is a vid that addresses your point about the computers working vs. audio posted by Dawnrazor on December 6, 2023 at 14:50:41:
Sure. I recognize that engineer who works for that audiophile equipment maker ;-)I agree with much of what Ted says in that 9 year old video but just how much jitter reduction does one need? Is it still necessary to have an external reclocker for the signal? Does the reclocker address the other clocks already in the system? If we still had crappy clocks in crappy DACs (which we probably do in bargain basement budget DACs) then perhaps a reclocker might do -some- good.
P.S. I actually worked on Rubidium clocks (and hydrogen masers) in the 1980's for a company called Efratom in Irvine CA. Ted is sort of correct in that Rubidium clocks are more about long term accuracy but that doesn't mean they use cheap internal crystals and crystal oscillator circuits. Typically an oven controlled crystal oscillator (OCXO) is slaved to the hyperfine transition state of the Rubidium atom in the physics package section of the system. This 'steers' the crystal frequency (often with a varactor diode) for long term stability. The SC-cut crystal itself used in the OCXO in the Rubidium clock is known for its low phase noise and jitter performance. They're not cheap as Ted alludes.
Edits: 12/07/23
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Follow Ups
- RE: Here is a vid that addresses your point about the computers working vs. audio - AbeCollins 15:52:29 12/06/23 (0)
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