Psychoacoustic Principle, Methods, and Problems with Perceived Distance Control in Spatial Audio

One purpose of spatial audio is to create perceived virtual sources at various positions in terms direction and distance with respect the listener. The psychoacoustic principle auditory perception essential for creating sources. Currently, technical means recreating different directions techniques are relatively mature. However, control remains a challenging task. This article reviews principle, methods, problems compares them principles methods directional localization audio, showing that validation depends on method used audio. To improve control, further research detailed mechanisms required.