In Reply to: Hi-res is dead. Apparently. 12 reasons why. posted by jusbe on November 18, 2015 at 02:09:21:
That is, you only need to sample at twice the frequency you intend to reproduce to capture that frequency perfectly. And very, very few, mostly very, very young people can hear 20kHz much less higher. Thus the adequacy of the 44.1kHz Redbook standard.However the trick part, I would surmise, has always been the filtering of frequencies above the maximum target frequency, (22kHz for Redbook), that are just noise. The advantage of high resolution is in this realm, i.e. it is easier to design filters with fewer artifacts, (such as phase shift or ringing), when the digital frequencies are higher to begin with.
I might suggest, as a non-expert, that advances in DAC design are almost entirely a matter of filtering with fewer artifacts. BTW, I'm extremely pleased with my Schiit Bifrost Multibit with its "closed form" filtering; the level of realism is astonishing, at least at that price point.
Dmitri Shostakovich
Edits: 11/19/15 11/19/15
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Follow Ups
- Nyquist Theorem is valid - Feanor 05:41:44 11/19/15 (7)
- RE: Nyquist Theorem is valid - Todd Krieger 13:48:17 11/21/15 (1)
- Reply to Todd Krieger - Feanor 05:21:39 11/22/15 (0)
- RE: Nyquist Theorem is valid - starchild 21:16:49 11/19/15 (0)
- Your gonna get be to part with some $ - G Squared 18:48:58 11/19/15 (1)
- Yep, Bifrost Multibit really does it for 16/44.1 -nt - Feanor 05:49:49 11/20/15 (0)
- The assumption of Nyquist Theorem - dave789 17:47:58 11/19/15 (0)
- RE: Nyquist Theorem is valid - jusbe 11:02:44 11/19/15 (0)