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arXiv · 2401.03687

BS-PLCNet: Band-split Packet Loss Concealment Network with Multi-task Learning Framework and Multi-discriminators

Zihan Zhang·Jiayao Sun·Xianjun Xia·Chuanzeng Huang·Yijian Xiao·Lei Xie
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Abstract

Packet loss is a common and unavoidable problem in voice over internet phone (VoIP) systems. To deal with the problem, we propose a band-split packet loss concealment network (BS-PLCNet). Specifically, we split the full-band signal into wide-band (0-8kHz) and high-band (8-24kHz). The wide-band signals are processed by a gated convolutional recurrent network (GCRN), while the high-band counterpart is processed by a simple GRU network. To ensure high speech quality and automatic speech recognition (ASR) compatibility, multi-task learning (MTL) framework including fundamental frequency (f0) prediction, linguistic awareness, and multi-discriminators are used. The proposed approach tied for 1st place in the ICASSP 2024 PLC Challenge.

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Zihan Zhang, Jiayao Sun, Xianjun Xia, Chuanzeng Huang, Yijian Xiao, Lei Xie. 2024-01-08. BS-PLCNet: Band-split Packet Loss Concealment Network with Multi-task Learning Framework and Multi-discriminators. https://arxiv.org/abs/2401.03687

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