NDLI: An Improvement of G.711 PLC Using Sinusoidal model

Content Provider	IEEE Xplore Digital Library
Author	Nakamura, K. Funaki, K.
Copyright Year	2005
Description	Author affiliation: Graduate Sch. of Eng. & Sci., Ryukyus Univ., Okinawa (Nakamura, K.)
Abstract	As broadband IP network is commonly used in home and office the demand of IP telephone is increasing more and more. On IP telephone packet loss occurs, as a result, speech quality is degraded seriously. Hence, packet loss concealment (PLC) is required in IP telephone. G.711 appendix I PLC algorithm has been recommended by ITU-T in 1999 and it is widely used in IP telephone. The performance of the G.711 PLC scheme is not sufficient, thus, we have already developed the improved algorithm using LPC analysis and synthesis scheme. In the improved method past speech is divided into LPC parameters and residual signal and lost residual signal is recovered by the G.711 PLC scheme and lost speech signal is recovered by synthesizing with the repeated LPC parameters and recovered residual signal. In this paper sinusoidal model is introduced to predict the lost residual signal more accurately. The estimation and prediction performance are evaluated by objective measure and the prediction is embedded in the improved G.711 PLC method
Starting Page	1670
Ending Page	1673
File Size	2835629
Page Count	4
File Format	PDF
ISBN	142440049X
DOI	10.1109/EURCON.2005.1630292
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-11-21
Publisher Place	Serbia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Programmable control Telephony Speech synthesis Linear predictive coding Signal synthesis IP networks Degradation Performance analysis Algorithm design and analysis Predictive models Sinusoidal model IP-telephone Packet loss concealment (PLC) G. 711 Appendix I
Content Type	Text
Resource Type	Article

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