DocumentCode
3182615
Title
Reconstruction of missing speech packet using trend-considered excitation
Author
Xiaoli, Wang ; Mangui, Liang
Author_Institution
Inst. of Inf. Sci., Northern Jiaotong Univ., Beijing, China
Volume
2
fYear
2002
fDate
26-30 Aug. 2002
Firstpage
1680
Abstract
A good packet loss recovery algorithm for PCM coded speech is described in this paper. The algorithm gets the excitation signal from the past packet by linear prediction and considers the trend of the excitation to recover the lost packet. By applying the algorithm to the G.711 μ-law coder, the new algorithm is superior to other algorithms in subjective quality tests.
Keywords
Internet telephony; linear predictive coding; pulse code modulation; signal reconstruction; speech codecs; speech coding; G.711 μ-law coder; PCM coded speech; excitation signal; linear prediction; missing speech packet reconstruction; packet loss recovery algorithm; subjective quality tests; trend-considered excitation; voice over IP; Filters; Information science; Phase change materials; Predictive models; Pulse modulation; Signal generators; Speech analysis; Speech synthesis; Testing; Vocoders;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing, 2002 6th International Conference on
Print_ISBN
0-7803-7488-6
Type
conf
DOI
10.1109/ICOSP.2002.1180124
Filename
1180124
Link To Document