An E-Model Implementation for Speech Quality Evaluation in VoIP Systems
ISCC '05 Proceedings of the 10th IEEE Symposium on Computers and Communications
Exploiting WSN for Audio Surveillance Applications: The VoWSN Approach
DSD '08 Proceedings of the 2008 11th EUROMICRO Conference on Digital System Design Architectures, Methods and Tools
QVS: Quality-Aware Voice Streaming for Wireless Sensor Networks
ICDCS '09 Proceedings of the 2009 29th IEEE International Conference on Distributed Computing Systems
Wireless sensor networks for voice capture in ubiquitous home environments
ISWPC'09 Proceedings of the 4th international conference on Wireless pervasive computing
Adaptive Energy-Efficient Packet Transmission for Voice Delivering in Wireless Sensor Networks
NPC '09 Proceedings of the 2009 Sixth IFIP International Conference on Network and Parallel Computing
Real-time voice streaming over IEEE 802.15.4
ISCC '10 Proceedings of the The IEEE symposium on Computers and Communications
Voice communications over zigbee networks
IEEE Communications Magazine
Towards inherent error-resilient voice encoding schemes in audio sensor networks
Proceedings of the seventh ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
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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%.