3rd International ICST Conference on Mobile Multimedia Communications

Research Article

Stochastic Packet Reconstruction for Subjectively Improved Audio Delivery over WLANs

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  • @INPROCEEDINGS{10.4108/ICST.MOBIMEDIA2007.1704,
        author={Andreas Floros and Markos Avlonitis and Panayiotis Vlamos},
        title={Stochastic Packet Reconstruction for Subjectively Improved Audio Delivery over WLANs},
        proceedings={3rd International ICST Conference on Mobile Multimedia Communications},
        proceedings_a={MOBIMEDIA},
        year={2010},
        month={5},
        keywords={WLAN Audio streaming Packet reconstruction},
        doi={10.4108/ICST.MOBIMEDIA2007.1704}
    }
    
  • Andreas Floros
    Markos Avlonitis
    Panayiotis Vlamos
    Year: 2010
    Stochastic Packet Reconstruction for Subjectively Improved Audio Delivery over WLANs
    MOBIMEDIA
    ICST
    DOI: 10.4108/ICST.MOBIMEDIA2007.1704
Andreas Floros1,*, Markos Avlonitis2,*, Panayiotis Vlamos2,*
  • 1: Dept. of Audiovisual Arts Ionian University 49 100, Corfu, Greece +30 26610 23724
  • 2: Dept. of Informatics Ionian University 49 100, Corfu, Greece +30 26610 47145
*Contact email: floros@ionio.gr, avlon@ionio.gr, vlamos@ionio.gr

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.