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%.
Original language | Undefined |
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Title of host publication | Proceedings of the 10th International Conference on Wired / Wireless Internet Communication, WWIC 2012 |
Place of Publication | Berlin |
Publisher | Springer |
Pages | 307-314 |
Number of pages | 8 |
ISBN (Print) | 978-3-642-30629-7 |
DOIs | |
Publication status | Published - 6 Jun 2012 |
Event | 10th International Conference on Wired/Wireless Internet Communications, WWIC 2012 - Santorini, Greece Duration: 6 Jun 2012 → 8 Jun 2012 Conference number: 10 |
Publication series
Name | Lecture Notes in Computer Science |
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Publisher | Springer Verlag |
Volume | 7277 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 10th International Conference on Wired/Wireless Internet Communications, WWIC 2012 |
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Abbreviated title | WWIC |
Country/Territory | Greece |
City | Santorini |
Period | 6/06/12 → 8/06/12 |
Keywords
- METIS-287908
- IR-80773
- Audio sensor networks
- error concealment
- voice coding
- voice quality assessment
- EWI-22013
- wireless multimedia sensor networks