you mean 7.1 or 5.1 is best used with trakir? however I do agree that sounds coming from in front of you dont sound right. then again those are from airplanes I can see.
more than once I have been saved because with m 5.1 system I can tell that an airplane was coming in fast behind me while chasing another airplane. or heard the plane moving behind me from right or left clearly.
semp
Does TrackIR bind your sound information to your head movements? If so, yes it can have a small effect. But because TrackIR needs to have scaling (the monitor doesn't move with your head) your brain will realize that the sound is 'dislocated' from your head movements and the illusion breaks again. The human ear (brain) is used to having a bit distorted sound when sound arrives to your ears. This is because the same sound arrives a fraction of a second later to your second ear usually. So the brain does all sorts of fancy stuff to 'fix' the sound before you actually hear it. One of those 'fancy' tricks is that your brain will try to use the time differential and phase changes (some of which happen when the sound hits your ear lobes) in the sounds to determine the location of the sound. Because we have only two ears, in some cases the sound source can be hard to pinpoint by just listening statically. That's why every person subconciously moves their head around while they hear sound. The movements are miniscule but they're enough to cue your brain about the direction of the sound.
When you listen with headphones, those miniscule head movements do not correlate with the sound received and also the phase etc. information doesn't match. That's why your brain will reject the cues and the audio appears to play inside your head.
When you listen to stereo speakers that produce audio very accurately, the illusion works because the head movement correctly matches with the sound source. With multi channel it becomes all that more convincing - even though the overall summed sound is basically the same that plays out from the headphones. Funnily enough if you have a good enough speaker, you can 'sense' space in sound even with just a mono channel!
The system is very high tuned so the head tracking has to be pretty much instantaneous and the phase effects added to the sound just exactly right. That's why also 'headspeaker' DSP has multiple different settings for different types of people, you can try which setting comes closest to your own anatomy.
