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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: oversampling posted by Werner on February 17, 2000 at 23:32:11:
Reconstruction is usually analog? No wonder people are worried about phasing. What do they do? XO @ 22.05kHz & feedback the highpass in the inverted input of the op-amp? Thus, the phase discrepancy would be eventually eliminated by recursively converge onto the unphased answer. However, this would mean the accuracy of the HF would heavily dependent on the order of the XO, while orders above 2nd would normally sound more artificial albeit musical in any other situation. Are you saying this reconstruction circuit removes this artifact? I'm sure the digital circuit can resolve this quicker w/o phasing in an infinite-order XO. My only concern is that the upsampler doesn't simply line-double. I feel uneasy about replacing the original data. I'd feel much better if it were merely augmented.
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Follow Ups
- Re: oversampling - Mart 00:52:51 02/18/00 (5)
- Re: oversampling - Werner 01:42:01 02/18/00 (4)
- Re: oversampling - JoeII-K 11:49:09 02/18/00 (2)
- care to expound on pros & cons of upsampling? - Mart 09:28:57 02/19/00 (1)
- Re: care to expound on pros & cons of upsampling? - JoeII-K 12:24:36 02/19/00 (0)
- I'm sorry I took too much for granted - Mart 04:58:04 02/18/00 (0)
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