Spatial noise-field control with online secondary path modeling: A wave-domain approach

Wen Zhang*, Christian Hofmann, Michael Buerger, Thushara Dheemantha Abhayapala, Walter Kellermann

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)

    Abstract

    Due to strong interchannel interference in multichannel active noise control (ANC), there are fundamental problems associated with the filter adaptation and online secondary path modeling remains a major challenge. This paper proposes a wave-domain adaptation algorithm for multichannel ANC with online secondary path modelling to cancel tonal noise over an extended region of two-dimensional plane in a reverberant room. The design is based on exploiting the diagonal-dominance property of the secondary path in the wave domain. The proposed wave-domain secondary path model is applicable to both concentric and nonconcentric circular loudspeakers and microphone array placement, and is also robust against array positioning errors. Normalized least mean squares-type algorithms are adopted for adaptive feedback control. Computational complexity is analyzed and compared with the conventional time-domain and frequency-domain multichannel ANCs. Through simulation-based verification in comparison with existing methods, the proposed algorithm demonstrates more efficient adaptation with low-level auxiliary noise.

    Original languageEnglish
    Article number8432092
    Pages (from-to)2355-2370
    Number of pages16
    JournalIEEE/ACM Transactions on Audio Speech and Language Processing
    Volume26
    Issue number12
    DOIs
    Publication statusPublished - Dec 2018

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