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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: To mod or not to mod posted by John C. - Aussie on April 8, 2007 at 18:51:38:
*** there is no generally accepted objective measurement of this either ***There are a number of units out there that measures jitter. True, none of them really measure absolute jitter, but they give indications of relative jitter.
I would have thought the least that one can do when replacing the clock is to at least provide before and after measurements. Otherwise, how do we know whether the jitter is actually improved? For all we know the clock may not be the limiting factor - it could be a number of things (voltage rail stability, EMI/RFI, PLL reclocking, ...) Just replacing the clock and thinking that it will improve jitter is naive at best, or wishful thinking.
I'm not against mods, I like doing them myself. For example, the latest mod that I did (over Christmas) was wrapping the audio circuit board in grounded aluminum foil (taking care to avoid short circuits) as an attempt to improve EMI compatibility.
It seems to sound better after I have done the mod, but to be honest the measurements are not statistically significant. So was it really an improvement or not? Who knows, but it makes me feel better. So I will admit I am also susceptible to the voodoo that surrounds this hobby of ours.
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Follow Ups
- Re: To mod or not to mod - Christine Tham 19:08:56 04/08/07 (1)
- I am also susceptible to the voodoo that surrounds this hobby of ours - John C. - Aussie 19:19:13 04/08/07 (0)
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