POPS rocks !
Position Of Phantom Source
Summing localisation of stereophonic phantom sources depends mainly on interaural differences : level (ILD) and time (ITD).
POPS uses L and R speakers impulse responses to estimate position of frequency dependant phantom image.
Here is an exemple of the mic pushed to the right with speakers 1)directed to front and 2) toe-in (crossed in front)
Interesting to see that the phantom image is much more centered with toe-in speakers.