Talk:Hatsune Miku/@comment-184.97.105.6-20140320012336/@comment-5165836-20140320211318

You mean this? http://en.wikipedia.org/wiki/3D_audio_effect

No idea. Hopeful that link will help someone else figure it out.

...if I had to guess, though, I think it's mostly the result of mixing in songs, as the voice data would probably be less flexible if it was programed like that.