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Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

Re: jitter-freedom: HDMI, (W)LAN, bluetooth!?

Howdy

Nope, as has been pointed out, computers don't ever do the moral equivalent of the D/A. They don't care about jitter unless that jitter gets bad enough to cause an extra or missed clock pulse. Conversely at the D/A (and no where prior unless, say some form of resampling is happening) the jitter is a big, big problem. So getting the right bits there is sort of assumed (for reasons that you understand) but getting the bits there exactly at the right time (within picoseconds) is the problem. Computers would only care about within, say, 100 microsecond accuracy for the same data, more than a 1000 times looser constraint.

-Ted


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