Packet Loss Concealment Method Based On The Simplified Residual Network
Jinru Zhu, Changchun Bao, Jinwei Huang · 2022
In this paper, an effective packet loss concealment (PLC) method based on the simplified residual network is proposed, which includes two stages, i.e., residual network training (RNT) and PLC. In the RNT stage, input feature of residual network comes from the decoded speech signal of previous N frames, whereas output feature of residual network is the decoded speech signal of current frame. The residual network is used to learn speech waveform in time-domain. In the PLC stage, if there is no packet loss in some frame, the characteristic parameters of this frame are decoded normally and sent to the buffer for standby. If packet loss happened in this frame, the speech signals of previous N frames contained in the buffer and the well-trained residual network are used to predict the lost speech signal of this frame. Experimental results show that the proposed PLC method outperforms the state-of-the-art method.