Table of Contents
1Scope
2References
3Abbreviationsanddefinitions
3.1Abbreviations
3.2Definitions
4Generalconsiderations
4.1Parametersdescribingspeechtransmissionquality
(includingterminals)
4.2Testsetupforterminals
4.3Testsetupforechocancellingdevices
4.4Testsignalsforconversationalevaluation
5Evaluationoftheconversationalsituation
5.1Doubletalkperformance
5.2Subjectiveevaluations
5.3Objectiveevaluations
6Guidanceontheimprovementofconversationalspeech
quality
6.1Delayandecho
6.2Backgroundnoisetransmission
6.3Doubletalkperformance
6.4Qualityofspeechsoundandloudness Abstract
Provides guidance for transmission planners on how to evaluate those effects impacting end-to-end speech transmission performance which are not covered by the E-model (ITU-T Recommendation G.107 [2] - The E-model, a computational model for use in transmission planning) and its associated Planning Guide (ITU-T Recommendation G.108 [3] - Application of the E-model - A planning guide). Procedures for informal subjective and objective evaluations that can be used to complement the E-model are provided here.
