ITU G.131:2003
ITU G.131:2003 Talker Echo And Its Control Provides guidance on the effect of talker echo and its control.
Table of Contents
1Introduction2References
3Effectoftalkerecho
4Effectoftalkerechoonoverallspeechtransmissionquality
5Activeechocontroldevices
6Rulesforconnectionswithechocontroldevices
AppendixI-Assessmentoftalkerechoeffects
AppendixII-Relationbetweenechodisturbancesundersingle
talkanddoubletalkconditions(evaluatedfor
one-waytransmissiontimeof100ms)
II.1Introduction
II.2Echoassessmentforthetestconditionsaccordingto
ITU-TRec.G.131
II.3Correlationbetweentheresultsundersingleanddouble
talkconditions
AppendixIII-Combinedeffectsoftalkerechointhepresence
ofabsolutedelay