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Voice Quality Improvement with Error Concealment in Audio Sensor Networks

  • Conference paper
Wired/Wireless Internet Communication (WWIC 2012)

Part of the book series: Lecture Notes in Computer Science ((LNCCN,volume 7277))

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Abstract

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%.

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Author information

Authors and Affiliations

  1. Department of Computer Engineering, Yeditepe University, Istanbul, 34755, TR

    Okan Turkes & Sebnem Baydere

Authors
  1. Okan Turkes
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  2. Sebnem Baydere
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Editor information

Editors and Affiliations

  1. Department of Communications Engineering, Tampere University of Technology, Korkeakoulunkatu 10, 33720, Tampere, Finland

    Yevgeni Koucheryavy

  2. Department of Electronic and Electrical Engineering, University College London, Torrington Place, WC1E 7JE, London, UK

    Lefteris Mamatas

  3. Computer Science Department, Boston University, 111 Cummington Street, MCS-271, 02215, Boston, MA, USA

    Ibrahim Matta

  4. Department of Electrical and Computer Engineering, Democritus University of Thrace, Building A, Panepistimioupolis Kimmeria, 67100, Xanthi, Greece

    Vassilis Tsaoussidis

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© 2012 Springer-Verlag Berlin Heidelberg

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Turkes, O., Baydere, S. (2012). Voice Quality Improvement with Error Concealment in Audio Sensor Networks. In: Koucheryavy, Y., Mamatas, L., Matta, I., Tsaoussidis, V. (eds) Wired/Wireless Internet Communication. WWIC 2012. Lecture Notes in Computer Science, vol 7277. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30630-3_27

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  • DOI: https://doi.org/10.1007/978-3-642-30630-3_27

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-30629-7

  • Online ISBN: 978-3-642-30630-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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