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Old 04-13-2007, 11:36 AM   #18
MatrixS2000 MatrixS2000 is offline
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Mar 2007
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Quote:
Originally Posted by ra1024 View Post
I thought that sampling theory dictated that as long as you sampled twice as fast as the highest frequency, you could accurately reconstruct the waveform. If that's truly the case, sampling higher shouldn't give you a more accurate waveform at least as I understand it.
That is the minimum number of samples, not the most accurate....

Example, at a sampling freq. of 48K, the highest freq. you can reproduce is 24Khz and you only get to "look" at it twice to make sure it is 24Khz.

If you sample it at 192K, you get to look at it eight times. This means you can track the 24Khz signal much more accurately.
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