Content for TR 26.975 Word version: 18.0.0
2 References
3 Definitions and abbreviations
4 General
5 Quality in Clean Speech and Error Conditions
6 Quality under background noise and Errors Conditions
7 Performances in Tandeming and with variation of the input speech level
8 Performances with the Codec Adaptation turned on
9 VAD/DTX Performances
10 Performances with DTMF tones
11 Transparency to Signaling tones
12 Performances with special input signals
13 Language Dependency
14 Transmission Delay
15 Frequency Response
16 Complexity
A AMR GSM Characterization Phase Overview
B AMR Verification Phase Overview
C Additional Characterization Test Results
D AMR Performances as a function of FER and RBER
E AMR Characterization in 3G Channels
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2 References p. 6
3 Definitions and abbreviations p. 7
3.1 Definitions p. 7
3.2 Abbreviations p. 7
4 General p. 9
4.1 Project History p. 9
4.2 Overview of the AMR Concept p. 9
4.3 Functional Description in a GSM System p. 10
4.4 Presentation of the following sections p. 12
5 Quality in Clean Speech and Error Conditions p. 13
6 Quality under background noise and Errors Conditions p. 16
7 Performances in Tandeming and with variation of the input speech level p. 19
8 Performances with the Codec Adaptation turned on p. 21
9 VAD/DTX Performances p. 23
10 Performances with DTMF tones p. 24
11 Transparency to Signaling tones p. 26
12 Performances with special input signals p. 27
13 Language Dependency p. 28
14 Transmission Delay p. 28
15 Frequency Response p. 33
16 Complexity p. 34
A AMR GSM Characterization Phase Overview p. 37
B AMR Verification Phase Overview p. 40
C Additional Characterization Test Results p. 41
D AMR Performances as a function of FER and RBER p. 47
D.1 Results in Clean Speech in ΔMOS p. 48
D.2 Results in Car Noise p. 49
D.3 Results in Street Noise p. 51
D.4 Results in Office Noise: p. 52
E AMR Characterization in 3G Channels p. 54
E.1 Overview of the 3G Characterization Phase p. 54
E.2 Radio Simulator Parameters p. 55
E.3 AMR 3G Characterization Test Results in Clean Speech p. 56
E.4 AMR 3G Characterization Test Results in Car Noise p. 61
$ Change history p. 63
