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TR 26.943
Recognition Performance evaluations of Codecs
for Speech Enabled Services (SES)

3GPP‑Page   ETSI‑search   fToC↓   Partial Content →
V19.0.0 (PDF)  2025/09  22 p.
V18.0.0  2024/03  22 p.
V17.0.0  2022/03  22 p.
V16.0.0  2020/06  22 p.
V15.0.0  2018/06  22 p.
V14.0.0  2017/03  22 p.
V13.0.0  2015/12  22 p.
V12.0.0  2014/09  22 p.
V11.0.0  2012/09  22 p.
V10.0.0  2011/04  22 p.
V9.0.0  2009/12  22 p.
V8.0.0  2008/12  22 p.
V7.0.0  2007/06  22 p.
V6.0.0  2005/01  22 p.
Rapporteur:
Mr. Pearce, David

full Table of Contents for  TR 26.943  Word version:  18.0.0

each clause number in 'red' refers to the equivalent title in the Partial Content
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0Introduction  p. 4
1Scope  p. 5
2References  p. 5
3Abbreviations  p. 5
4General  p. 6
4.1Project History  p. 6
4.2Overview of the speech recognition framework for automated voice services work item  p. 8
4.3Presentation of the following sections  p. 8
5Recommendation criteria  p. 8
5.1Overview  p. 8
5.2Scoring on individual databases  p. 8
5.3Performance metric over all databases  p. 9
5.4Comparisons between codecs  p. 9
5.4.1Low data-rate codec comparison  p. 9
5.4.2High data-rate codec comparison  p. 9
5.4.2.18 kHz sampling rate  p. 9
5.4.2.216 kHz sampling rate  p. 9
5.5Detailed recommendation comparisons  p. 9
6Performance evaluation method  p. 10
6.1Introduction  p. 10
6.2Recognition engines  p. 11
6.2.1Recognizer for speech codecs based proposals  p. 11
6.2.2Training and testing  p. 11
6.2.3Recognizer for DSR  p. 11
6.2.4Training and testing  p. 11
6.3Usage of VAD for frame dropping  p. 12
6.4Codec evaluations  p. 12
6.4.1Recognition experiments under error-free channel  p. 12
6.5Recognition experiments under channel errors  p. 14
7Recognition Performance Evaluation Results  p. 15
AKey selection phase documents  p. 19
$Change history  p. 20

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