Towards inherent error-resilient voice encoding schemes in audio sensor networks


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Türkes, Okan and Baydere, Sebnem (2012) Towards inherent error-resilient voice encoding schemes in audio sensor networks. In: Seventh ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation and Characterization, WiNTECH 2012, 22 August 2012, Istanbul, Turkey.

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Abstract:Recently, multimedia utilization in Wireless Sensor Networks (WSN) has shown that robust encoding methods are imperative for any application requiring a certain level of quality. During ubiquitous data exploitation in these lossy networks, a data-conserving method coherent with coding and transmission scheme is essential. This study centers upon several basic reconstruction methods for unapprehended parts in the voice data gathered at the end-point of a real multi-hop Audio Sensor Network (ASN). Considering gathered voice signals, error concealment (EC) methods are inherently applied over lost packets in the testbed. Around 6,000 real single-path transmission tests are verified with an instrumental simulation. Besides, EC schemes are supported with a multi-path transmission in which data aggregation occurs at certain intervals. Nearly 300,000 qualitative results show that perceptual quality can be preserved promisingly with the utilization of low cost affordable correction techniques.
Item Type:Conference or Workshop Item
Copyright:© 2012 ACM
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/81813
Official URL:http://dx.doi.org/10.1145/2348688.2348697
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