ETSI EG 202 396-3-2009 Speech Processing, Transmission and Quality Aspects (STQ); Speech Quality performance in the presence of background noise Part 3: Background noise transmission - Objective test methods V1.2.1
2015ETSI EG 202 396-3-2015 Speech and multimedia Transmission Quality (STQ); Speech Quality performance in the presence of background noise; Part 3: Background noise transmission - Objective test methods (V1.5.1)
2011ETSI EG 202 396-3-2011 Speech and multimedia Transmission Quality (STQ); Speech Quality performance in the presence of background noise Part 3: Background noise transmission - Objective test methods V1.3.1
2009ETSI EG 202 396-3-2009 Speech Processing, Transmission and Quality Aspects (STQ); Speech Quality performance in the presence of background noise Part 3: Background noise transmission - Objective test methods V1.2.1
2007ETSI EG 202 396-3-2007 Speech Processing, Transmission and Quality Aspects (STQ); Speech Quality performance in the presence of background noise Part 3: Background noise transmission Objective test methods V1.1.1