arXiv:2607.12807eess.ASeess.SP2026-07

用三维空间与频率信息联合调控降噪滤波器,提升混响环境下的降噪效果。

Spatial-Frequency Cued Generative Fixed-Filter Active Noise Control Based on Deep Learning in Reverberant Environments

论文配图:Spatial-Frequency Cued Generative Fixed-Filter Active Noise Control Based on Deep Learning in Reverberant Environments
图 1 · 摘自论文原文
  • 结合声源三维位置和频谱特征,动态生成控制滤波器。
  • 在混响环境中对不同位置和频段噪声的抑制性能优于现有算法。
  • 适用于复杂声学场景,尤其适合移动设备或智能音箱等应用。

生成式固定滤波主动降噪(GFANC)通过子控制滤波器组合有效抑制具有多样频率特性的噪声,但未引入声源空间信息,限制了其在混响环境中的性能。本文提出一种新型空间-频率引导的GFANC(SF-GFANC)方法,利用声源的三维(3D)空间信息与频率特征。具体而言,设计一个多任务卷积循环神经网络(CRNN),同时估计声源距离、仰角和方位角作为空间提示,并预测子控制滤波器的组合权重作为频率提示。这些空间-频率提示共同指导控制滤波器的生成。此外,本文给出了混响环境中最优控制滤波器的理论分析,强调了基于三维空间条件设计控制滤波器的重要性。仿真与实测声学路径评估表明,该CRNN对未见声学环境和噪声类型具有鲁棒性,且结果证实,在处理不同3D位置和频率特性的噪声源时,SF-GFANC显著优于代表性主动降噪算法。

原文摘要 · Abstract (English)

Generative fixed-filter active noise control (GFANC) effectively attenuates noise with diverse frequency characteristics through the combination of sub control filters. However, it does not incorporate the spatial information of the noise source, which limits its performance, particularly in reverberant environments. To address this limitation, this paper proposes a novel spatial-frequency cued GFANC (SF-GFANC) method that exploits both three-dimensional (3D) spatial and frequency information of the noise source. Specifically, a multi-task convolutional recurrent neural network (CRNN) is designed to estimate the source distance, elevation angle, and azimuth angle as spatial cues, while predicting the combination weights of sub control filters as frequency cues. These spatial-frequency cues jointly guide the generation of the appropriate control filter. In addition, a theoretical analysis of the optimal control filter in reverberant environments is presented, highlighting the importance of 3D spatially conditioned control filter design. Evaluations using both simulated and measured acoustic paths demonstrate that the CRNN is robust to unseen acoustic environments and noise types. Furthermore, the results confirm that SF-GFANC outperforms representative ANC algorithms when handling noise sources across diverse 3D locations and frequency characteristics in reverberant environments.

主动降噪深度学习混响环境空间感知

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