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Convention Paper

Design of a Second-Order Soundfield Microphone

Authors: Rafaely, Boaz

AES Convention 118 · Paper 6405 · May 2005

Abstract

Second-order sound-field microphone is desirable for spatial audio recordings and reproduction which uses zero, first and second order harmonics. Recent results in the design and analysis of spherical microphone arrays are employed in this paper to analyze performance and requirements from a second-order soundfield microphone configured as a spherical microphone array. The effect of measurement noise, spatial aliasing, microphone positioning accuracy and microphone response mismatch on overall performance is evaluated both analytically and using simulation. Specifications for high quality second-order microphone are presented, and directions for improving performance are proposed.

Details

Published in
AES Convention 118
AES Convention
118
Paper number
6405
Publication date
May 6, 2005
Session subject
Multichannel Sound (5.1 Alternatives, WFS)
Affiliation
Ben-Gurion University of the Negev (See document for exact affiliation information.)
Type
Convention Paper