Hi-Rez Highway

New high resolution SACD releases, players and technology.

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RE: Digital Resolution -- An Analysis

Posted by lmaletz@comcast.net on September 13, 2020 at 09:37:34:
I find John Ellison's analysis of digital resolution relevant and useful.
The bit length x sampling frequency, which he listed for various formats in comparison to Redbook CD format, expresses the potential resolution of those formats, eg. the obtainable throughput (or bandwidth in its digital sense) of digital information (one can use either bits or bytes).
Insofar as digital audio entails conversion of analog signals to digital signals and then back to analog signals, and neither signal can be more than an approximation of the other, higher potential resolution allows closer approximation of the signals.
Of course what one hears is what matters. The ear has differential perception of frequencies much as the eye has for instance increased perception of tonal difference in shadowy verses brightly illuminated scenes.
To my elderly ears, higher resolution digital music offers audible improvement over lower resolution digital music at least up to, as John Ellison listed, 13.06 times CD resolution, ie that of so-called DXD. For me the audible difference inaudio format, DSD versus PCM, diminishes with increasing resolution such that at DXD or DSD256 the difference is scarcely if at all perceivable.
Let me conclude by citing Rushton Paul's newly released article in 'Positive Feedback' where he notes that several studios now record in DXD or DSD128. Having purchased a few albums in DXD format, and aware that recording technology continues to improve in respects other than digitization, I consider that money well spent.