GPUによる音場レンダリングの試み

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タイトル別名
  • GPU ニ ヨル オンジョウ レンダリング ノ ココロミ
  • On the sound field rendering by gpu

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The sound field rendering is a technique to compule sound field from three-dimensional numerical models constructed in the computer. which is the same concept as the graphics rendering in computer graphics. In this paper, sound field renderers are developed using the digital Huygens' model (DHM) and the constrained interpolation profile (CIP) method respectively implemented on the graphics processing unit (GPU). The digital boundary condition (DBC) in which the boundary condition with an arbitrary frequency characteristics is realized by an IIR digital filter is also developed and integrated into the sound field renderer. As the result of numerical experiments, it is confirmed that several ten times the computing performance can be easily achieved using GPU compared with CPU. It is also confirmed that the DBC is valid for the boundary condition with arbitrary frequency characteristics.

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