This ITU-T Recommendation describes methods and procedures for the evaluation of complex terminals, network components and transmission systems. The test methods mostly make use of test signals described in ITU-T Recommendations P.50, P.59 and P.501. For various technical implementations and conversational situations, the possible impacts on the speech quality perceived subjectively are given and the relevant measurement procedures are described.
ITU-T P.502 FRENCH-2000 history
2000ITU-T P.502 FRENCH-2000 Objective test methods for speech communication systems using complex test signals