Applied Sciences (Nov 2021)

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

  • Bosun Xie,
  • Guangzheng Yu

DOI
https://doi.org/10.3390/app112311242
Journal volume & issue
Vol. 11, no. 23
p. 11242

Abstract

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

Keywords