1
Scope
2
References
3
Definitions
4
Abbreviations and acronyms
5
Conventions
6
The E-model, a computational model for use in transmission planning
6.1
Introduction
6.2
Source code
7
Structure and basic algorithms of the E-model
7.1
Calculation of the transmission rating factor, R
7.2
Basic signal-to-noise ratio, Ro
7.3
Simultaneous impairment factor, Is
7.4
Delay impairment factor, Id
7.5
Equipment impairment factor, Ie
7.6
Advantage factor, A
7.7
Default values
Annex A – Conditions of using the E-model
A.1
Examples of conditions where caution must be exercised when using the E‑model
A.2
Conditions for which the performance of the E-model has been improved by
updating from the earlier version
Annex B – Quality measures derived from the transmission rating factor R
Appendix I – Calculation of R from MOSCQE values
Appendix II – Provisional impairment factor framework for wideband
speech transmission
Appendix III – Reference implementation of the E-model in ITU-T
G.107
Bibliography