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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: High Resolution Signal versus Upsampled Signal posted by Werner on August 27, 2003 at 23:02:15:
If upsampling actually restored resolution, your contention about dither would be true, but...The added "word length" from interpolation/upsampling is for the filtering of the signal... Rejecting images above Fs/2.... It does **not** restore resolution.
Dither is intended to reduce resolution losses in a downconversion. But in this case, the added word length the dither is acting upon, as mentioned above, is *not* "restored resolution." Hence the dither is being applied to *arbitrary* data.
This is why dither has no benefit in an upconversion process.
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Follow Ups
- Think About It... - Todd Krieger 08/28/0300:57:23 08/28/03 (1)
- Re: Think About It... - Werner 01:38:26 08/28/03 (0)
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