Voice Quality Improvement with Error Concealment in Audio Sensor Networks

Okan Türkes, Sebnem Baydere

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    3 Citations (Scopus)
    17 Downloads (Pure)


    Multi-dimensional properties of audio data and resource-poor nodes make voice processing and transmission a challenging task for Wireless Sensor Networks (WSN). This study analyzes voice quality distortions caused by packet losses occurring over a multi-hop WSN testbed: A comprehensive analysis of transmitted voice quality is given in a real setup. In the experiments, recorded signals are partitioned into data segments and delivered efficiently at the source. Throughout the network, two reconstruction scenarios are considered for the lost segments: In the first one, a raw projection is applied on voice with no error concealment (V-NC) whereas the latter encodes a simple error concealment (V-EC). It is shown that with an affordable reconstruction, a comprehensible voice can be gathered even when packet error rate is as high as 30%.
    Original languageUndefined
    Title of host publicationProceedings of the 10th International Conference on Wired / Wireless Internet Communication, WWIC 2012
    Place of PublicationBerlin
    Number of pages8
    ISBN (Print)978-3-642-30629-7
    Publication statusPublished - 6 Jun 2012
    Event10th International Conference on Wired/Wireless Internet Communications, WWIC 2012 - Santorini, Greece
    Duration: 6 Jun 20128 Jun 2012
    Conference number: 10

    Publication series

    NameLecture Notes in Computer Science
    PublisherSpringer Verlag
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349


    Conference10th International Conference on Wired/Wireless Internet Communications, WWIC 2012
    Abbreviated titleWWIC


    • METIS-287908
    • IR-80773
    • Audio sensor networks
    • error concealment
    • voice coding
    • voice quality assessment
    • EWI-22013
    • wireless multimedia sensor networks

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