Agreed measurements currently do not predict perceived sound quality, but as a scientist, consider what I have posted before:
- Consider this as a scientist. Is it possible that the reason current measurements do not reliably predict sound quality is that the state of scientific knowledge of the complex psychoacoustic, environmental factors, and psychological mechanisms of subjective musical perception/enjoyment are not fully understood, and an algorithm to measure and predict this not developed. I believe this the case, and ‘‘tis a lofty goal that may never be achieved due to the complexity of human perception of sound quality.
For now, as the OP stated, let’s use our ears.
Regarding the discussion on whether scientific principles and faith are non sequiturs, consider Albert Einstein:
- For the scientific method can teach us nothing else beyond how facts are related to, and conditioned by, each other. The aspiration toward such objective knowledge belongs to the highest of which man is capabIe, and you will certainly not suspect me of wishing to belittle the achievements and the heroic efforts of man in this sphere. Yet it is equally clear that knowledge of what is does not open the door directly to what should be. One can have the clearest and most complete knowledge of what is, and yet not be able to deduct from that what should be the goal of our human aspirations. Objective knowledge provides us with powerful instruments for the achievements of certain ends, but the ultimate goal itself and the longing to reach it must come from another source.'
- However, it must be admitted that our actual knowledge of “physical”laws is only imperfect and fragmentary, so that, actually, the belief in the existence of basic all-embracing laws in nature also rests on a sort of faith; … everyone who is seriously involved in the pursuit of science becomes convinced that a spirit is manifest in the laws of the universe—a spirit vastly superior to that of man, and one in the face of which we with our modest powers must feel humble.

