
EVS codec testing improvesd audio quality in VoLTE services
This unique and comprehensive test coverage enables both device manufacturers and operators to move ahead with commercial EVS deployments worldwide to deliver the best audio quality in the market for both voice and music while also optimizing bandwidth.
By utilizing the entire audible frequency range, EVS is able to deliver voice quality that is more clear and realistic sounding than initial VoLTE codec implementations. In addition, EVS offers a wider range of bitrates to improve system efficiency and utilizes unique jitter buffer management and packet loss concealment techniques to minimize the degradation of voice quality caused by adverse conditions in the transmission channel. EVS testing and measurement is complex because there are many codec configurations, features, parameters, and audio quality measurements to take into consideration.
Spirent’s Elevate Test Framework with Prolab is a robust test platform that can configure the numerous network parameters to fully emulate real world scenarios and evaluate the EVS codec under dozens of scenarios including adversarial conditions.
