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On Mon, 07 Mar 2005 13:32:36 -0600, (John Byrns) wrote:
In article .com,
"Joseph Meditz" wrote:
Although the OP is tangled up in his own underwear, I think that he's
alluding to the relationship between sampling rate and quantization
noise.
Can you explain the "relationship between sampling rate and quantization
noise"? I thought sampling and quantization were two independent effects,
sampling being an essentially analog effect creating no noise within the
signal bandwidth as long as the sampling rate is greater than two times
the signal bandwidth, while quantization is the conversion of sample
values to discrete digital values and does create noise?
Another way to say what Joseph means is that finite quantization
introduces what are effectively timing errors ("jitter") in the
complete A/D/A conversion.
In the A/D/A worlds, noise and distortion are *not* different things.
And neither are amplitude and frequency modulation distortions. (Or
course, they weren't in the old analog world either; we just didn't
talk about it that way).
Digital storage is theoretically perfect after being bandwidth
limited, dynamic range limited, and quantized-and-back monotonically.
Discussion really ought to be targeted at the limitations, IMO.
Chris Hornbeck
"Say! One of you guys know how to Madison?"
-Brad in _The Rocky Horror Picture Show_
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