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Evaluation of spatial active noise cancellation performance using spherical harmonic analysis

Chen, Hanchi; Zhang, Jihui (Aimee); Samarasinghe, Prasanga; Abhayapala, Thushara


This paper presents a novel metric to evaluate the performance of spatial active noise cancellation (ANC) systems. We show that the acoustic potential energy within a spherical region can be expressed by a weighed squared sum of spherical harmonic coefficients. The proposed metric allows convenient evaluation of spatial ANC performance using a spherical microphone array. In order to evaluate the effectiveness of this metric, we set up a experimental ANC system and conducted a series narrow band...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Conference paper
Source: 2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC)
DOI: 10.1109/IWAENC.2016.7602968
Access Rights: Open Access


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