The tetrahedral microphone capsule arrangement in a Soundfield microphone captures a so-called A-format signal which is then converted to a corresponding B-format signal. The phase differences between the A-format signal channels due to non-coincidence of the microphone capsules cause errors in the corresponding B-format signals and linear combinations thereof. Various strategies for designing B-format non-coincidence correction filters are compared and limitations are discussed.
Authors:
Faller, Christof; Kolundzija, Mihailo
Affiliations:
Illusonic LLC, Lausanne, Switzerland; Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland(See document for exact affiliation information.)
AES Convention:
126 (May 2009)
Paper Number:
7766
Publication Date:
May 1, 2009
Subject:
Spatial Rendering
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