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arXiv · 2102.08551

Weighted Recursive Least Square Filter and Neural Network based Residual Echo Suppression for the AEC-Challenge

Ziteng Wang·Yueyue Na·Zhang Liu·Biao Tian·Qiang Fu
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Abstract

This paper presents a real-time Acoustic Echo Cancellation (AEC) algorithm submitted to the AEC-Challenge. The algorithm consists of three modules: Generalized Cross-Correlation with PHAse Transform (GCC-PHAT) based time delay compensation, weighted Recursive Least Square (wRLS) based linear adaptive filtering and neural network based residual echo suppression. The wRLS filter is derived from a novel semi-blind source separation perspective. The neural network model predicts a Phase-Sensitive Mask (PSM) based on the aligned reference and the linear filter output. The algorithm achieved a mean subjective score of 4.00 and ranked 2nd in the AEC-Challenge.

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Ziteng Wang, Yueyue Na, Zhang Liu, Biao Tian, Qiang Fu. 2021-02-17. Weighted Recursive Least Square Filter and Neural Network based Residual Echo Suppression for the AEC-Challenge. https://arxiv.org/abs/2102.08551

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