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eess.SP updates on arXiv.org

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Meta-learning based Selective Fixed-filter Active Noise C...
Y. Xiao, M. Liu, D. Wei, L. Jian · 2025-04-27 · via eess.SP updates on arXiv.org

The selective fixed-filter strategy is popular in industrial applications involving active noise control (ANC) technology, which circumvents the time-consuming online learning process by selecting the best-matched pre-trained control filter. However, the existing selective fixed-filter ANC (SFANC) based algorithms classify noises in frequency band, which is not a reasonable approach. Moreover, they pre-train the control filter utilizing only a single noise segment, leading to inaccurate estimation and undesirable noise cancellation performance when dealing with dynamically time-varying noise. Inspired by the applicability of meta-learning to various models utilizing gradient descent technique, this paper proposes a novel meta-learning based SFANC system, wherein the fixed-filters that may not be optimal for specific types of noises but can rapidly adapt to previously unseen noise conditions are pre-trained. To address the mismatch issue between meta-learning update methods and ANC requirements while enhancing the receptive field and convergence speed of control filters, a multiple-input batch processing strategy is utilized in pre-training. Simulations based on the common ESC-50 noise dataset are performed and demonstrate the superiorities of the proposed method in terms of classification accuracy, convergence speed, and steady-state noise cancellation.