A Packet Loss Concealment Algorithm Based on Two-Sided Linear Prediction
Luo Kai · Signal Processing · 2008
This paper presents a two-sided linear prediction based packet loss concealment(PLE)algorithm which predicts lost packets from speech segments via either preceding,or both preceding and subsequent packets(If subsequent packet is available).Pre- dicted samples are smoothed by linear weighting to obtain the final reconstructed signal.It also performs overlap-and-adding and ampli- tude-scaling operations to alleviate discontinuity at packet boundaries.The assessment of resultant speech quality via informal listening test and objective measurement with PESQ algorithm from ITU-T P.862 shows that the proposed algorithm has significantly improved the performance,compared with other four popular reconstruction algorithms.