@henry53
AMR continues to make measurements that appear extremely accurate but have no reference whatsoever to audible sound.
I don't see how that is an accurate account of what ASR is doing.
The whole point of the measurements are always with respect to the audible consequences, or not, of those measurements. The speaker measurements for instance arose BECAUSE of how they have been correlated to audible differences in speaker design. Amir often explains the audible consequences of the measurements, and also listens and reports any relevant audible consequences.
If you mean to reference their measurements of things like SINAD, then once again, it's all in the context of audibility - that is, "will this be audible?" and the answer can be yes or no depending on the measurement. A lot of the SINAD differences are in to the inaudible range, but that's the point - ensuring they are in the inaudible range.
I agree that it can look a bit silly to keep chasing ever greater SINAD numbers once we are well in to the inaudible range. However, in the bigger picture, the fact the measurements allow us to know the gear in question has distortion elements that are inaudible is the main point.