Some live recordings are done directly through the board though.

btw I'm not totally convinced that the convergence Sean Olive is talking about is entirely learned. Our sensory systems develop according to the environment. If you alter what "natural stimuli" are, you also alter sensory perception and performance later in life. There's clinical evidence of this, and also these experiments have been done in animal models too (one group won a Nobel Prize for this in the 80s). We all experience more or less the same sensory stimuli during development, which explains why certain things work the way they do in all of us. So, the whole idea that the preferred spectral content of music, for example, is similar among people may be due (at least in part) to how well music with those properties mimic natural stimuli, rather than our overt attempt to try to conform to some standard that we're taught.