Empirically derived models are used to relate user perception to objectively measurable characteristics, under a criterion of nearly perfect co-variance between predicted MOS values and the variations in the values of the objectively measurable characteristics. In the example context of evaluating packet...http://www.google.com.au/patents/US7099282?utm_source=gb-gplus-sharePatent US7099282 - Determining the effects of new types of impairments on perceived quality of a voice service
