That's the problem APL is attempting to solve with their Virtuoso software.

 

Last edited: Feb 6, 2026 at 1:46 PM

There is that paper from Griesinger (the Lexicon legend) where he talks about hrtfs and directional sound perception and stuff like that.
He sais that all out of the box systems are doomed to fail. His experiments showed it would be possible though. By not just measuring ear dimensions and head, but also the ear canal in a complex 3d model. the paper sais with all measurements done right and proper algorithmic translation of the material fed to the headphones real out of head and surround experience is possible.
I'd kill to hear a system like that once. But even if a company would offer a service like that, I would think its a scam with some woodoo done on your ears and giving you a razer gaming headset in a fancy box

 

Nah, 9ty is right. Patching signals to each ear directly is not "stereo listening". Its more lilke dual mono
If you happen to have a free standing absorber baffle around you can test that with speakers.
Listen to speakers in a near fiels like you would normally, then place the absorber between the speakers beginning from you nose.
Now left ear hears very little of right speaker and vice versa.
This is gonna be a drastic change in perception and because we are not used to that as much as we're used to headphones it is quite eerie.