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Conference Paper

Three-Channel Crosstalk Cancellation Mode Efficiency for Sources in the Far-Field

Authors: Hamdan, Eric Carlos; Fazi, Filippo Maria

AES Conference: 2019 AES International Conference on Immersive and Interactive Audio · Paper 81 · March 2019

Abstract

The singular value decomposition is used to analyse the generalised modes of the radiation matrix for a symmetric three-channel crosstalk cancellation loudspeaker system assuming plane wave sources in free-field. The addition of a third centre source acts as a physical lossless regularisation that dramatically improves the efficiency of the in-phase mode. In addition, the singular value decomposition is used to analyse the source strength solution for a plane wave virtual source. The validity of the derived source strengths for real systems is shown by comparison of the analytical function to source strengths calculated using KEMAR head-related transfer functions. The analytical formula is shown to be accurate up to approximately 700 Hz in far-field and anechoic conditions.

Details

Published in
AES Conference: 2019 AES International Conference on Immersive and Interactive Audio
Paper number
81
Publication date
March 6, 2019
Affiliation
University of Southampton, Southampton, UK (See document for exact affiliation information.)
Type
Conference Paper