From the 1 of 5 linked papers with an AI index.
5 papers
Acoustic intensity estimation using cardioid microphone pairs in tight-frame configurations
Akira Omoto
The paper proposes using spherical tight‑frame arrangements of cardioid microphone pairs to estimate three‑dimensional acoustic intensity more robustly, reducing direction‑dependen…
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…
Frequency-Domain Sound Field from the Perspective of Band-Limited Functions
Takahiro Iwami, Akira Omoto
In this paper, the frequency-domain sound field is regarded as an element of some band-limited function space, and a representation of the field as a linear combination of the repr…