Folklore #4: If Something is Audible, Then That Something Is Measurable
If you like alternate endings, insist on trying to identify and measure more things. Good on you! Just more action and less talk please!
This is a hard hill to climb. The more things you measure, the more complicated things becomes. You have to make sure all your measurements line up, establish whether there is a proper correlation, and work out the relationship between different measurements. The complexity scales up real quick real fast. In the commercial world, this means more expensive.
After all that, you may still end up with data that is useless. You will fail many times before you succeed. If that is your desire, go with it.
Make sure you are measuring the right things. If you want to measure what is audible, go straight to the source and measure yourself instead. And I do not mean blind testing either! Hopefully one day one of you can formalise a whole system for measuring these effects, creating a bridge between the physical to the emotional (the same way sampling theorem is a bridge between discrete and continuous). When you succeed you’d be collecting the equivalent of the Nobel Peace Prize in the Audiophile realm.