双解码卷积循环网络风噪声有源控制  

Active control of wind noise with dual-decoder convolutional recurrent network

作　　者：吴礼福[1,2] 葛文昌 陈晨 王绍博 WU Lifu;GE Wenchang;CHEN Chen;WANG Shaobo(School of Electronics&Information Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,Nanjing University of Information Science&Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学电子与信息工程学院,南京210044 [2]南京信息工程大学大气环境与装备技术协同创新中心,南京210044

出　　处：《南京信息工程大学学报》2024年第5期678-687,共10页Journal of Nanjing University of Information Science & Technology

基　　金：国家自然科学基金(12074192)。

摘　　要：本文提出一种利用双解码卷积循环网络(Dual-decoder Convolutional Recurrent Network,DCRN)代替FxLMS(Filtered-x Least Mean Square)算法的有源噪声控制方法,考虑到相位信息在有源噪声控制(Active Noise Control,ANC)中的重要性,DCRN网络的输入特征为噪声信号的复数频谱(包括实部谱和虚部谱).网络结构中,采用编码模块从噪声复数频谱中提取特征,利用双解码模块分别估计网络输出的实部谱和虚部谱,采用参数共享机制和组策略以降低训练参数的数量并提高网络的学习能力和泛化能力.特别是针对风噪声,选用新的损失函数以及对训练数据进行正则化处理以提升DCRN的性能.实验结果表明,DCRN方法在仿真环境与有源降噪耳机环境下对一般噪声和风噪声都表现出良好的降噪性能和鲁棒性.Here,an Active Noise Control(ANC)approach is proposed which replaces Filtered-x Least Mean Square(FxLMS)algorithm with Dual-decoder Convolutional Recurrent Network(DCRN).Due to the importance of phase information in ANC,the input feature of DCRN is the complex spectrogram of the noise signal(including real and imaginary spectrograms).In the network structure,a coding module is used to extract features from the noise complex spectrograms,and a dual-decoder module is used to estimate the real and imaginary spectrograms of the network output.Parameter sharing mechanism and group strategy are adopted to reduce the number of training pa-rameters and improve the learning ability and generalization performance.Especially for wind noise,a new loss func-tion is adopted and the training data are regularized to improve the performance of DCRN.Experiments in both simu-lation and ANC headphone environments show that the DCRN approach exhibits good noise reduction performance and robustness for both general noise and wind noise.

关 键 词：双解码卷积循环网络 有源噪声控制 FXLMS算法 复数频谱 

分 类 号：TN912.3[电子电信—通信与信息系统]