Acoustic sound field simulator based on head‐related transfer function and three‐dimensional mirror‐image

Abstract

The head‐related transfer function (HRTF) is the most important factor to simulate an acoustic sound field for the virtual reality technology or the architecture field. However, the HRTF has individual differences on every listener, because it represents the real transfer function between the sound source point in the acoustic field and the listener’s ears. In addition, it is impossible to measure the HRTFs on every listener. To solve this problem, we focus on three‐dimensional mirror‐image. It can represent the virtual transfer function (especially, room reverberation) in an acoustic field by replacing all surface reflections with mirror‐image sources. Therefore, we try to design the new acoustic sound field simulator by convoluting the real transfer function of the HRTF and the virtual transfer functions of the three‐dimensional mirror‐image. By this approach, the proposed simulator may realize the more accurate sound‐image localization with room reverberation by three‐dimensional mirror‐image even if t...