A METHOD TO CORRELATE THE QUALITY OF SERVICE IN VOTP CALLS AND THE SPEECH QUALITY MEASURED BY ITU-T RECOMMENDATION G.107 USING MULTIVARIATE ANALYSIS

摘要

This reports the use of multivariate analysis as a way to identify a correlation between objective metrics for Quality of Service applicable to IP networks and subjective speech quality predicted by the algorithm E-model defined in ITU-T G.107. A method of collecting and analyzing statistical information was developed to reach such goal. For evaluation, a test environment was designed, implemented and operated to data collecting and computational tools were applied to analytical and statistical processing.