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Frequency-Domain Stochastic Error Concealment for Wireless Audio Applications

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Abstract

Real time digital audio delivery over Wireless Local Area Networks (WLANs) represents an attractive, flexible and cost effective framework for realizing high-quality, multichannel home audio applications. However, the unreliable nature of WLANs IP link frequently imposes significant playback quality degradation, due to delay or permanent loss of a number of transmitted digital audio packets. In this paper, a novel packet error concealment technique is presented, based on the spectral reconstruction of the statistical equivalent of a previously successfully received audio data packet. It is shown that the proposed data reconstruction scheme outperforms previously published error concealment strategies, in both terms of objective and perceptual criteria.

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Acknowledgments

The authors wish to thank Mr. Thomas Zarouchas (Audio Technology Group, WCL, University of Patras) for his contribution to this work.

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Correspondence to Andreas Floros.

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Floros, A., Avlonitis, M. & Vlamos, P. Frequency-Domain Stochastic Error Concealment for Wireless Audio Applications. Mobile Netw Appl 13, 357–365 (2008). https://doi.org/10.1007/s11036-008-0059-z

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  • DOI: https://doi.org/10.1007/s11036-008-0059-z

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