DocumentCode :
258860
Title :
Packet loss concealment for VoIP based on Pitch Waveform Replication and Linear Predictive Coding
Author :
Toyoshima, Masahiro ; Shimamura, Tetsuya
Author_Institution :
Grad. Sch. of Sci. & Eng., Saitama Univ., Saitama, Japan
fYear :
2014
fDate :
17-20 Nov. 2014
Firstpage :
89
Lastpage :
92
Abstract :
In this paper, we propose a Packet Loss Concealment (PLC) method. Our method is based on Pitch Waveform Replication (PWR) and Linear Predictive Coding (LPC). The estimated packet using LPC is better than that using PWR at a near boundary of the lost packet and the received one. On the other hand, the estimated packet using PWR is better than that using LPC at a distant boundary. Therefore, we combine the two estimated packets by considering the merits and demerits of PWR and LPC. Experimental results show that the proposed method provides better Perceptual Evaluation of Speech Quality (PESQ) scores than the conventional methods. Especially PESQ scores of the proposed method are remarkably excellent in the case of male voice.
Keywords :
Internet telephony; linear codes; speech coding; LPC; PESQ scores; PWR; VoIP; linear predictive coding; packet loss concealment; pitch waveform replication; speech quality; Delays; Internet; Jitter; Linear predictive coding; Packet loss; Speech;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems (APCCAS), 2014 IEEE Asia Pacific Conference on
Conference_Location :
Ishigaki
Type :
conf
DOI :
10.1109/APCCAS.2014.7032726
Filename :
7032726
Link To Document :
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