Algorithm Research & Explore
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App. Res. of Comp. Printed Article
Vol. 39, 2022 No. 5
1444-1448

Beamforming post-filter networks based on cross-attention mechanism

Liu Zhuo1,2
Fu Zhonghua1,2
1. Xi'an Iflytek Super-Brain Information Technology Co. , Ltd. , Xi' an 710076, China
2. School of Computer Science, Northwestern Polytechnical University, Xi' an 710129, China
DOI: 10.19734/j.issn.1001-3695.2021.10.0445

Abstract

Aiming at problems of poor inhibition of non-stationary noise and target speech distortion in classical post-filters, this paper proposed a post-filter network based on cross-attention mechanism, which used gated recurrent unit based codec groups adding skip connections as the network framework. It used the subband gains of the beamforming output and noise reference power spectrums based on GammaTone domain as the dual features, and used the crossed multi-head scaled dot-product attention to integrate the features and to capture the long-distance dependency of input sequences. The experimental results show that the proposed algorithm is superior to baselines in speech quality and intelligibility under different signal-to-interference ratios and noise conditions, and has strong robustness. It can not only reduce the non-stationary noise, but also minimize the distortion of the target speech. Compared with the deep learning based end-to-end methods, it is lightweight and has low time delay, which meets the needs of practical engineering applications.

Foundation Support

科技创新2030-“新一代人工智能”重大项目(2018AAA0103100)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2021.10.0445
Publish at: Application Research of Computers Printed Article, Vol. 39, 2022 No. 5
Section: Algorithm Research & Explore
Pages: 1444-1448
Serial Number: 1001-3695(2022)05-026-1444-05

Publish History

[2021-12-17] Accepted Paper
[2022-05-05] Printed Article

Cite This Article

刘卓, 付中华. 基于交叉注意力机制的波束形成后置滤波网络 [J]. 计算机应用研究, 2022, 39 (5): 1444-1448. (Liu Zhuo, Fu Zhonghua. Beamforming post-filter networks based on cross-attention mechanism [J]. Application Research of Computers, 2022, 39 (5): 1444-1448. )

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  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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