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Estimation of frame independent and enhancement components for speech communication over packet networks

In this paper, we describe a new approach to cope with packet loss in speech coders. The idea is to split the information present in each speech packet into two components, one to independently decode the given speech frame and one to enhance it by exploiting inter-frame dependencies. The scheme is...

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Main Authors:	Giacobello, Daniele, Murthi, M N, Christensen, M G, Jensen, S H, Moonen, M
Format:	Conference Proceeding
Language:	English
Subjects:	analysis-by-synthesis Bit rate Decoding Internet telephony linear predictive coding Oral communication Probability Speech analysis Speech codecs Speech coding Speech enhancement Speech synthesis Voice over IP (VoIP)
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creator	Giacobello, Daniele Murthi, M N Christensen, M G Jensen, S H Moonen, M
description	In this paper, we describe a new approach to cope with packet loss in speech coders. The idea is to split the information present in each speech packet into two components, one to independently decode the given speech frame and one to enhance it by exploiting inter-frame dependencies. The scheme is based on sparse linear prediction and a redefinition of the analysis-by-synthesis process. We present Mean Opinion Scores for the presented coder with different degrees of packet loss and show that it performs similarly to frame dependent coders for low packet loss probability and similarly to frame independent coders for high packet loss probability. We also present ideas on how to make the coder work synergistically with the channel loss estimate.
doi_str_mv	10.1109/ICASSP.2010.5495189
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subjects	analysis-by-synthesis Bit rate Decoding Internet telephony linear predictive coding Oral communication Probability Speech analysis Speech codecs Speech coding Speech enhancement Speech synthesis Voice over IP (VoIP)
title	Estimation of frame independent and enhancement components for speech communication over packet networks
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