4 papers
Acoustic intensity estimation using cardioid microphone pairs in tight-frame configurations
Akira Omoto
This paper investigates acoustic intensity estimation using pairs of cardioid microphones based on the cardioid-cardioid (C-C) method. Unlike conventional pressure-difference techn…
Directional reflection modeling via wavenumber-domain reflection coefficient for 3D acoustic field simulation
Satoshi Hoshika, Takahiro Iwami, Akira Omoto
This study proposes a framework for incorporating wavenumber-domain acoustic reflection coefficients into sound field analysis to characterize direction-dependent material reflecti…
Beamforming in the Reproducing Kernel Domain Based on Spatial Differentiation
Takahiro Iwami, Naohisa Inoue, Akira Omoto
This paper proposes a novel beamforming framework in the reproducing kernel domain, derived from a unified interpretation of directional response as spatial differentiation of the…
Polar Coordinate Solutions of the Helmholtz Equation in General Dimensions and an Orthonormal Basis
Takahiro Iwami, Naohisa Inoue, Akira Omoto
In acoustical engineering, analytical methodologies are often restricted to two or three dimensions; however, a general-dimensional approach can enhance learning and implementation…