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The acquisition of higher-order ambisonic signals presents a technical challenge which has been met by several authors proposing a number of different array geometries and sensor types. The current paper presents a class of arrays whose performance has not been assessed before; arrays comprising only pressure-sensitive sensors on both sides of an acoustically hard plate. The combined acoustical and signal processing system is analyzed and numerical experiments on an optimized third order array provide a performance comparison with a more conventional hard-shell spherical microphone array. The model is verified by measurements.
Author (s): Berge, Svein
Affiliation:
Harpex Ltd., Berlin, Germany
(See document for exact affiliation information.)
Publication Date:
2019-03-06
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Berge, Svein; 2019; Acoustically Hard 2D Arrays for 3D HOA [PDF]; Harpex Ltd., Berlin, Germany; Paper 39; Available from: https://aes2.org/publications/elibrary-page/?id=20408
Berge, Svein; Acoustically Hard 2D Arrays for 3D HOA [PDF]; Harpex Ltd., Berlin, Germany; Paper 39; 2019 Available: https://aes2.org/publications/elibrary-page/?id=20408