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TR 26.975 (SA4)
Performance characterization of the
Adaptive Multi-Rate (AMR) speech codec

ToC   3GPP‑Page   ETSI‑search   Help    
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:  AMR-related TS/TR

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.


 

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1  ScopePDF-p. 6
2  References
3  Definitions and abbreviationsPDF-p. 7
4  GeneralPDF-p. 9
5  Quality in Clean Speech and Error ConditionsPDF-p. 13Up
6  Quality under background noise and Errors ConditionsPDF-p. 16
7  Performances in Tandeming and with variation of the input speech levelPDF-p. 19
8  Performances with the Codec Adaptation turned onPDF-p. 21
9  VAD/DTX PerformancesPDF-p. 23
10  Performances with DTMF tonesPDF-p. 24
11  Transparency to Signaling tonesPDF-p. 26
12  Performances with special input signalsPDF-p. 27
13  Language DependencyPDF-p. 28
14  Transmission Delay
15  Frequency ResponsePDF-p. 33Up
16  ComplexityPDF-p. 34
A  AMR GSM Characterization Phase OverviewPDF-p. 37
B  AMR Verification Phase OverviewPDF-p. 40
C  Additional Characterization Test ResultsPDF-p. 41
D  AMR Performances as a function of FER and RBERPDF-p. 47
E  AMR Characterization in 3G ChannelsPDF-p. 54Up
F  Change historyPDF-p. 63

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