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TR 26.936
Performance Characterization of 3GPP Audio Codecs

3GPP‑Page   ETSI‑search   fToC↓   Partial Content →
V19.0.0 (PDF)  2025/09  56 p.
V18.0.0  2024/03  56 p.
V17.0.0  2022/03  56 p.
V16.0.0  2020/06  56 p.
V15.0.0  2018/06  55 p.
V14.0.0  2017/03  56 p.
V13.0.0  2015/12  56 p.
V12.0.0  2014/09  56 p.
V11.0.0  2012/09  56 p.
V10.0.0  2011/04  56 p.
V9.0.0  2009/12  56 p.
V8.0.0  2008/12  56 p.
V7.0.0  2007/06  55 p.
V6.1.0  2006/03  55 p.
Rapporteur:
Dr. Bruhn, Stefan
Ericsson LM

full Table of Contents for  TR 26.936  Word version:  18.0.0

each clause number in 'red' refers to the equivalent title in the Partial Content
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1Scope  p. 5
2References  p. 5
3Abbreviations  p. 5
4Subjective test results  p. 6
4.1Organization of the subjective test results  p. 6
4.2Subjective test method  p. 8
5Performance Characterization for Audio Content  p. 9
5.1Results from characterization phase 1  p. 9
5.2Results from Characterization phase 2  p. 10
5.3Results from Selection Test  p. 12
6Performance characterization over bit-rate  p. 14
7Performance based on Selection Tests  p. 15
7.1Intrinsic quality comparison in lower bit-rate range (up to 24 kbps)  p. 15
7.2Quality comparison under stressed operating conditions at lower bit-rates (up to 24 kbps)  p. 17
7.3Performance evaluation in higher bit-rate range (up to 48 kbps)  p. 18
8Performance characterization for error conditions  p. 18
9Results of verification tests  p. 21
9.1Complexity verification  p. 21
9.1.1AMR-WB+ complexity  p. 21
9.1.2Eaac+ Complexity  p. 22
9.2Frequency response verification  p. 22
9.2.1Frequency response of AMR-WB+  p. 22
9.2.1.1Characterization phase configuration  p. 22
9.2.1.2Selection phase configuration  p. 26
9.2.2Frequency response of Eaac+  p. 29
9.3Codec delay verification  p. 33
9.3.1AMR-WB+ codec delay  p. 33
9.3.2Eaac+ codec delay  p. 34
9.4Performance verification with 3D audio signal  p. 35
9.5Verification of rate switching performance  p. 40
9.5.1Rate switching performance of AMR-WB+  p. 40
9.5.2Rate switching performance of Eaac+  p. 40
9.6Verification of source code  p. 41
9.6.1Source code verification of AMR-WB+  p. 41
9.6.2Source code verification of Eaac+  p. 44
9.6.3General discussion  p. 47
9.7Content dependency  p. 48
ATest results from other bodies  p. 49
A.1Test results from ITU-T standardization of G.722-1, annex C  p. 49
BDocuments for information  p. 51
B.1Official testing documents (file TR26.936 Annex B1 Official Test Documents.zip)  p. 51
B.2Additional information documents (file TR26.936 Annex B2 Additional Documents.zip)  p. 51
B.3Verification test documents (file TR26.936 Annex B3 Verification test documents.zip)  p. 52
$Change history  p. 53

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