The present document introduces and explains the use and application of speech samples to determine the objective listening quality (LQO) in narrowband (NB)@ wideband (WB) and super-wideband (SWB) for different scenarios such as connections between fixed networks and mobile terminals.
TR 103 138-2015 history
2016TR 103 138-2016 Speech and multimedia Transmission Quality (STQ); Speech samples and their use for QoS testing (V1.4.1; Includes Diskette)
2015TR 103 138-2015 Speech and multimedia Transmission Quality (STQ); Speech samples and their use for QoS testing (V1.3.1; Includes Diskette)
2014TR 103 138-2014 Speech and multimedia Transmission Quality (STQ); Speech samples and their use for QoS testing (V1.2.1; Includes Diskette)
2013TR 103 138-2013 Speech and multimedia Transmission Quality (STQ); Speech samples and their usage for QoS testing (V1.1.1; Includes Diskette)