ETSI
TSI TS 102 563 V1.1.1 (2007
2)
Contents
Intellectual Property Rights................................................................................................................................4
Foreword.............................................................................................................................................................4
1 Scope........................................................................................................................................................5
2 References................................................................................................................................................5
3 Definitions, abbreviations and arithmetic operators.................................................................................5
3.1 Definitions..........................................................................................................................................................5
3.2 Abbreviations .....................................................................................................................................................5
3.3 Arithmetic operators...........................................................................................................................................6
4 Introduction..............................................................................................................................................6
5 Audio........................................................................................................................................................7
5.1 HE AAC v2 audio coding ..................................................................................................................................7
5.2 Audio super framing syntax ...............................................................................................................................7
5.3 MPEG Surround...............................................................................................................................................10
5.3.1 Overview ....................................................................................................................................................10
5.3.2 Requirements for MPEG Surround encoders and decoders........................................................................11
5.4 Programme Associated Data (PAD).................................................................................................................11
5.4.1 PAD insertion .............................................................................................................................................12
5.4.2 Coding of F-PAD and X-PAD....................................................................................................................13
5.4.3 PAD extraction ...........................................................................................................................................13
6 Transport error coding and interleaving.................................................................................................13
6.1 RS coding.........................................................................................................................................................13
6.2 Formation of the coding array..........................................................................................................................14
6.3 Formation of the parity array............................................................................................................................14
6.4 Formation of the output array...........................................................................................................................14
6.5 Order of data transmission................................................................................................................................15
7 Signalling ...............................................................................................................................................15
7.1 FIC signalling...................................................................................................................................................15
7.2 Audio parameter signalling ..............................................................................................................................15
8 Re-configuration.....................................................................................................................................15
Annex A (normative): Error concealment.........................................................................................16
A.1 AAC error concealment..........................................................................................................................16
A.1.1 Interpolation of one corrupt AU.......................................................................................................................16
A.1.2 Fade-out and fade-in.........................................................................................................................................17
A.2 SBR error concealment ..........................................................................................................................17
A.3 Parametric stereo error concealment ......................................................................................................19
Annex B (informative): Implementation tips for PAD insertion........................................................20
Annex C (informative): Synchronizing to the audio super frame structure.....................................21
Annex D (informative): Processing a super frame ..............................................................................23
Annex E (informative): Bit-rate available for audio...........................................................................24
Annex F (informative): Bibliography...................................................................................................25
History..............................................................................................................................................................26
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