Analysis of cerebral blood flow on direction recognition of sound generated by 3D audio technology

Abstract

In recent years, there has been an increasing demand for VR, not only in gaming but also in various fields such as healthcare, education, and sports. The purpose of VR is to enhance the sense of presence, and there are numerous visual-related technologies available. On the other hand, there is also 3D sound technology as an auditory technique to enhance the sense of presence. 3D sound enables listeners to perceive sound from various directions in an environment. However, this technology is greatly influenced by the shape and size of the listener's head and ears, leading to individual variations in the effectiveness of 3D sound. To improve the performance of 3D sound, it is necessary to consider these individual differences and dynamically adjust the positions of sound sources in the virtual space. Therefore, this paper aims to solve this issue by measuring and analyzing the brain states during sound direction recognition as a means of assessing the perceptual state.