I'm sorry, but this is not accurate at all. Using "only" two signals, humans are quite good at localizing sound sources in some directions:
Concerning absolute localization, in frontal position, peak accuracy is observed at 1÷2 degrees for localization in the horizontal plane and 3÷4 degrees for localization in the vertical plane (Makous and Middlebrooks, 1990; Grothe et al., 2010; Tabry et al., 2013).
from https://www.frontiersin.org/journals/psychology/articles/10....
Humans are quite good at estimating distance too, inside rooms.
Humans use 3 cues for localization, time differences, amplitude differences and spectral cues from outer ears, head, torso, etc. They also use slight head movements to disambiguate sources where the signal differences would be the same (front and back, for instance).
I do agree that humans would not perceive the location difference between two pixels next to each other.
As I wrote elsewhere:
> Yet I'm usually not even noticing whether a video has stereo or mono sound. So I highly doubt that ultra precise OLED loudspeakers would make a noticeable difference.
Yep, the hearing is more akin to a hologram than a mere stereo pair imaging.