We know from the engineering team that the upsampling for standard resolution (CD) in the 808v6/818v3 is completely different from that in the 808v5/818v2 and is rooted in the several years of MQA research.
Other than it being based on the R&D for MQA, do we have any further information on
HOW the Upsampling is different??... likewise, is the Apodizing filter used the same or different from used on previous versions??
It's probably all IP stuff, but just asking in case there was some more info somewhere on here on elsewhere??