The Analysis for Binaural Signal’s Characteristics of a Real Source and Corresponding Virtual Sound Image

Abstract

3D Audio System could rebuild more realistic and immersive sound effects. The existing 3D audio reconstruction methods mainly consider the physical characteristics of sound filed, less take head’s effect on sound transmission process into account. However, when human is located in the sound field, there will have an obvious deviation between perceptual sound image and reconstructed image. Some researchers considered head’s effects on the reconstruction of sound field, but they only use simple head model to reproduce sound field in some certain loudspeaker configurations. Therefore, if we want to reconstruct an ideal sound filed, we need to analyze head’s effects on the reconstruction of sound field in detail. Thus in this paper, we analyzed and compared binaural signal’s characteristics under different loudspeaker configurations and gains. The analysis results may be act as a primary reference for further research about sound field reconstruction etc.