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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: You STILL don't get it posted by dwk on February 12, 2009 at 08:18:33:
I didn’t get it when digital audio was introduced as Perfect Sound, Forever because Sampling Theory told us so and laboratory measurements with steady state test tones confirmed it. The obvious audible limitations of 16 bits @ 44.1K were dismissed as theoretically inaudible. And so it goes. The wizards have further perfected Perfect Sound, Forever with digital filters and other special effects and, again, we are told the obvious audible imperfections are theoretically inaudible and the wholesale modification and averaging of recorded samples is described as statistically insignificant.
When I post plots showing what I consider significant anomalies in FIR filters I am branded as an ignoramus who doesn’t get it because the signals I created were not band-limited. Yet, an audio component manufacturer is praised after posting plots showing his FIR filter’s impulse response. As far as I know, impulses are, by definition, not band-limited.
OK, now I get it. Non band-limited test signals are good as long as they further the cause but any non band-limited signal used to criticize the cause is deemed invalid. As Tony just pointed out, becasue of my views, I have no business posting in this forum. I can take a hint.
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Follow Ups
- No, I DO get it. - jmlpartners 10:16:03 02/12/09 (1)
- RE: No, I DO get it. - Tony Lauck 10:41:13 02/12/09 (0)
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