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TS 26.290 (SA4)
Audio codec processing functions –
Extended Adaptive Multi-Rate - Wideband (AMR-WB+) speech codec –
Transcoding functions

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(P) V14.0.0    2017/03    87 p.
(P) V13.0.0    2015/12    87 p.
(P) V12.0.0    2014/09    87 p.
(P) V11.0.0    2012/09    87 p.
(P) V10.0.0    2011/04    87 p.
(P) V9.0.0    2009/10    87 p.
(P) V8.0.0    2008/12    87 p.
(P) V7.0.0    2007/03    87 p.
(P) V6.3.0    2005/06    87 p.

Rapporteur:  Dr. Bruhn, Stefan
See also:  AMR-WB+-related TS/TR    

This TS describes the detailed mapping from input blocks of monophonic or stereophonic audio samples in 16 bit uniform PCM format to encoded blocks and from encoded blocks to output blocks of reconstructed monophonic or stereophonic audio samples. The coding scheme is an extension of the AMR-WB coding scheme (TS 26.194) and is referred to as extended AMR-WB or AMR-WB+ codec. It comprises all AMR-WB speech codec modes including VAD/DTX (TS 26.190) as well as extended functionality for encoding general audio signals such as music, speech, mixed, and other signals.


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1   Scope   PDF-p. 7
2   References
3   Definitions and abbreviations   PDF-p. 8
4   Outline description
5   Functional description of the encoder   PDF-p. 16
5.1   Input signal pre-processing
5.2   Principle of the hybrid ACELP/TCX core encoding   PDF-p. 17
5.3   Hybrid ACELP/TCX core encoding description   PDF-p. 24
5.4   Mono Signal High-Band encoding (BWE)      Up
5.5   Stereo signal encoding   PDF-p. 42
5.6   Packetization
6   Functional description of the decoder      Up
7   Detailed bit allocation of the Extended AMR-WB codec   PDF-p. 72
8   Storage and Transport Interface formats   PDF-p. 78
A   Change history   PDF-p. 85

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