As I remember, when high resolution audio was in its infancy there was a requirement from the MPAA that it could not be transmitted ‘in the clear’ to stop it being copied. Meridian’s solution was to encrypt the stream using MHR algorithm.

The need to keep hirez audio encrypted is a bit quaint now. However, a byproduct of the encryption process is apparently to increase entropy in the signal, which improves jitter handling AIUI. I assume why this is still the approach taken.

Main: Roon-Mac, Oracle Delphi/SME 309/Cadenza Blue, GSP Reflex C, 218, DSP5200SEU, Sky Q, Samsung 49KS7000
Office: Roon-Mac, Quad Vena 2, DALI Opticon 1
Prototype and learning: 101, M30 mk1
Next project: Vintage LS3/5A, QUAD 303