TOOLS '02 Proceedings of the 12th International Conference on Computer Performance Evaluation, Modelling Techniques and Tools
Performance Evaluation - Modelling techniques and tools for computer performance evaluation
Assessing the quality of voice communications over internet backbones
IEEE/ACM Transactions on Networking (TON)
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ITC20'07 Proceedings of the 20th international teletraffic conference on Managing traffic performance in converged networks
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Three listening-only experiments were conducted to characterize the subjective performance (i.e., speech quality) of 8 kb/s G.729. These experiments evaluated the quality of coded speech under a variety of conditions: (i) interworking with other international and regional speech coding standards; (ii) input speech that had been corrupted by environmental noise; (iii) operation over degraded transmission channels (including random bit errors and a simulated radio channel). The results of these experiments indicate that 8 kb/s G.729 meets the performance requirements that were established at the beginning of the standardization process