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Conference Paper Open Access

Acoustically Hard 2D Arrays for 3D HOA

Authors: Berge, Svein

AES Conference: 2019 AES International Conference on Immersive and Interactive Audio · Paper 39 · March 2019

Abstract

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.

Details

Published in
AES Conference: 2019 AES International Conference on Immersive and Interactive Audio
Paper number
39
Publication date
March 6, 2019
Affiliation
Harpex Ltd., Berlin, Germany (See document for exact affiliation information.)
Type
Conference Paper