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TR 26.975 (SA4)
Performance Characterization of the
Adaptive Multi-Rate (AMR) Speech Codec

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V15.0.0 (PDF)  2018/06  65 p.
V14.0.0  2017/03  65 p.
V13.0.0  2015/12  65 p.
V12.0.0  2014/09  65 p.
V11.0.0  2012/09  65 p.
V10.0.0  2011/04  65 p.
V9.0.0  2009/12  65 p.
V8.0.0  2008/12  65 p.
V7.0.0  2007/06  65 p.
V6.0.0  2005/01  65 p.
V5.0.0  2002/06  65 p.
V4.1.0  2001/10  65 p.
V3.1.0  2001/10  57 p.


Rapporteur:  Dr. Bruhn, Stefan
See also:

This TR provides background information on the performances of the Adaptive Multi-Rate (AMR) speech codec. Experimental test results from the Verification and Characterization phases of testing are reported to illustrate the behavior of AMR in multiple operational conditions.

full Table of Contents for  TR 26.975  Word version:   15.0.0

 

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1  ScopeWord-p. 6
2  References
3  Definitions and abbreviationsWord-p. 7
4  GeneralWord-p. 9
5  Quality in Clean Speech and Error ConditionsWord-p. 13
6  Quality under background noise and Errors ConditionsWord-p. 16
7  Performances in Tandeming and with variation of the input speech levelWord-p. 19
8  Performances with the Codec Adaptation turned onWord-p. 21
9  VAD/DTX PerformancesWord-p. 23
10  Performances with DTMF tonesWord-p. 24
11  Transparency to Signaling tonesWord-p. 26
12  Performances with special input signalsWord-p. 27
13  Language DependencyWord-p. 28
14  Transmission Delay
15  Frequency ResponseWord-p. 33
16  ComplexityWord-p. 34
A  AMR GSM Characterization Phase OverviewWord-p. 37
B  AMR Verification Phase OverviewWord-p. 40
C  Additional Characterization Test ResultsWord-p. 41
D  AMR Performances as a function of FER and RBERWord-p. 47
E  AMR Characterization in 3G ChannelsWord-p. 54
F  Change historyWord-p. 63

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