Grimrock

MAybe we talk at cross-purposes. I understood your comments as supporting the idea of putting more speakers inside the ear cups (is that so? if yes, could you provide a source where it is (scientifically) explained how and that this works). At first glance, putting more drivers inside the cups contr...

It's not the same thign since sound will not be transferred over the surrounding air. And that will be also the problem with more than one speaker inside the cup. The transmission over the air is missing. So If you have a full dolby system even the soudn from behind reaches both ears. This is not th...

The video shows that it IS possible to locate with stereo heaphones. How should you still need 4 speakers (inside an headphone). Note that I'm speaking of a stereo heaphone not of stereo speakers!

All you need are stereo headphones. Check this: https://www.youtube.com/watch?v=IUDTlvagjJA The main problem is that you only have two ears, which means you hear stereo. To localize objects, the brain measures the time difference of soundwaves reaching the left and right ear. The problem with true &...