Considering Digital Recording and Digital Playback.

A samplefrequence of 192 Khz and 24 Bits, leaves a dynamic headroom of approx.
27 Bit (162dB at 24 khz) Much more then neccesary.

Towards higher frequences the resolution of the audio signal is diminished.
Why not introduce a "Digital RIAA"?

(A/D) A 6dB Highpass filter at 24 khz (at recording), increases the higherfrequence resolution. And by 20 Hz the resolution would be approx. 18 Bit (108 dB)

(D/A) A 6dB Lowpass filter at say 10 hz (at playback).

It's should really improve the soundquality of Digital Audio, whether the technic should be called "Digital RIAA", is ofcause not adviceable.. Although it kind of works the same way....

I have not tried it myself, since it is not available.
It might, though, end Lp bussines...

Experience and knowledge about the issue, is very wellcome feedback....

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