A boundary element phantom head for binaural hearing simulation

A numerical phantom head with boundary element modeling is proposed and demonstrated for binaural hearing investigation.The solution is involved with the scattering and diffraction. The boundary integral expression corresponding to the Helmholtz equation is numerically solved by the help of the boundary element discretization. Two possible formulations are considered; one is the formulation for the total wave field, and another is the formulation in which the wave field consists of the incident wave and the scattered wave.The solutions of the two methods are found to be completely coinciding. The authors believe that as it provides great flexibility the modeling paves the way to the application not only to the field distribution evaluation but also to the listening experiments with the digital filter whose transfer characteristics is based on the present numeral modeling.