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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: The potential of different recording formats posted by Tony Lauck on September 22, 2009 at 13:26:54:
"This is the same whether working with 1 bit samples or multi-bit samples"it's not the same, when you're using multibit PCM format your each sample describes the current audio signal (that's why you have to use multibit to describe many different levels of audio signal), in DSD format audio samples follow the analog signal assigning only two values, 1 if the signal increased and 0 if the signal decreased from the previous sample, what describes the audio signal here is density of 1s and 0s and not each individual sample as it's in case of PCM recording.
"Pulse Code Modulation was invented in the 1920's or 1930's. Delta-sigma modulators were invented in the 1960's. Since PCM was in use decades prior to the invention of delta-sigma, it should be obvious that there are plenty of applications of PCM that do not use delta-sigma modulators."
I know there are converters that can support PCM format natively but they are pretty rare these days. Take for example Blu-Ray players - they all convert 24bit PCM -> delta sigma -> analog
Edits: 09/22/09
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Follow Ups
- RE: The potential of different recording formats - Hiro 14:08:01 09/22/09 (1)
- RE: The potential of different recording formats - Tony Lauck 15:19:29 09/22/09 (0)
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