Research Article
Transcoded speech contemporary objective quality measurements reliability
@INPROCEEDINGS{10.1109/WTS.2008.4547552, author={J. Holub and L. Blaskova}, title={Transcoded speech contemporary objective quality measurements reliability}, proceedings={Wireless Telecommunications Symposium}, publisher={IEEE}, proceedings_a={WTS}, year={2008}, month={6}, keywords={}, doi={10.1109/WTS.2008.4547552} }- J. Holub
L. Blaskova
Year: 2008
Transcoded speech contemporary objective quality measurements reliability
WTS
IEEE
DOI: 10.1109/WTS.2008.4547552
Abstract
Speech transcoding (coder tandeming) is unavoidable source of transmission quality degradation for ad-hoc or permanently interoperating networks. Test methodology and results of voice transmission quality measurement for transcoded voice in coder tandem arrangement is described. The objective tests have been performed using ITU-T P.862 (PESQ) and P.563 (3SQM) algorithms. The subjective tests results based on ITU-T P.800 are also presented. The objective results confirm additional degradations caused by above mentioned transcodings, highlighting coder combinations causing extreme impairments. The subjective tests quantify objective measurement accuracy.
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