ISO/IEC 13818-7:2006
(Main)Information technology — Generic coding of moving pictures and associated audio information — Part 7: Advanced Audio Coding (AAC)
Information technology — Generic coding of moving pictures and associated audio information — Part 7: Advanced Audio Coding (AAC)
ISO/IEC 13818-7:2006 specifies MPEG-2 Advanced Audio Coding (AAC), a multi-channel audio coding standard that delivers higher quality than is achievable when requiring MPEG-1 backwards compatibility. It provides ITU-R "indistinguishable" quality at a data rate of 320 kbit/s for five full-bandwidth channel audio signals. ISO/IEC 13818-7:2006 also supplements information on how to utilize the bandwidth extension technology (SBR) specified in ISO/IEC14496-3 in conjunction with MPEG-2 AAC.
Technologies de l'information — Codage générique des images animées et du son associé — Partie 7: Codage du son avancé (AAC)
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Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 13818-7
Fourth edition
2006-01-15
Information technology — Generic coding
of moving pictures and associated audio
information —
Part 7:
Advanced Audio Coding (AAC)
Technologies de l'information — Codage générique des images
animées et du son associé —
Partie 7: Codage du son avancé (AAC)
Reference number
©
ISO/IEC 2006
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ii © ISO/IEC 2006 – All rights reserved
Contents Page
Foreword.v
Introduction .vi
1 Scope .1
1.1 General.1
1.2 MPEG-2 AAC Tools Overview.1
2 Normative References.7
3 Terms and Definitions .7
4 Symbols and Abbreviations .14
4.1 Arithmetic Operators.14
4.2 Logical Operators .15
4.3 Relational Operators .15
4.4 Bitwise Operators .16
4.5 Assignment .16
4.6 Mnemonics .16
4.7 Constants .16
5 Method of Describing Bitstream Syntax .16
6 Syntax .18
6.1 Audio Data Interchange Format, ADIF.18
6.2 Audio Data Transport Stream, ADTS.19
6.3 Raw Data.21
7 Profiles and Profile Interoperability.33
7.1 Profiles.33
7.2 Profile Interoperability.35
8 Overall Data Structure.36
8.1 AAC Interchange Formats .36
8.2 Raw Data.41
8.3 Single Channel Element (SCE), Channel Pair Element (CPE) and Individual Channel
Stream (ICS) .45
8.4 Low Frequency Enhancement Channel (LFE) .51
8.5 Program Config Element (PCE).51
8.6 Data Stream Element (DSE) .56
8.7 Fill Element (FIL).56
8.8 Extension Payload.57
8.9 Tables.61
8.10 Figures .70
9 Noiseless Coding.70
9.1 Tool Description.70
9.2 Definitions .71
9.3 Decoding Process.73
9.4 Tables.76
10 Quantization .76
10.1 Tool Description.76
10.2 Definitions .76
10.3 Decoding Process.76
11 Scalefactors.77
11.1 Tool Description.77
© ISO/IEC 2006 – All rights reserved iii
11.2 Definitions. 77
11.3 Decoding Process. 78
12 Joint Coding . 79
12.1 M/S Stereo. 79
12.2 Intensity Stereo . 80
12.3 Coupling Channel . 82
13 Prediction. 86
13.1 Tool Description. 86
13.2 Definitions. 86
13.3 Decoding Process. 87
13.4 Diagrams. 93
14 Temporal Noise Shaping (TNS) . 93
14.1 Tool Description. 93
14.2 Definitions. 94
14.3 Decoding Process. 94
15 Filterbank and Block Switching. 96
15.1 Tool Description. 96
15.2 Definitions. 96
15.3 Decoding Process. 97
16 Gain Control. 101
16.1 Tool Description. 101
16.2 Definitions. 102
16.3 Decoding Process. 102
16.4 Diagrams. 109
16.5 Tables. 109
Annex A (normative) Huffman Codebook Tables. 111
Annex B (informative) Information on Unused Codebooks . 130
Annex C (informative) Encoder . 131
Annex D (informative) Patent Holders . 189
Annex E (informative) Registration Procedure. 190
Annex F (informative) Registration Application Form . 192
Annex G (informative) Registration Authority . 193
Bibliography . 194
iv © ISO/IEC 2006 – All rights reserved
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members of
ISO or IEC participate in the development of International Standards through technical committees
established by the respective organization to deal with particular fields of technical activity. ISO and IEC
technical committees collaborate in fields of mutual interest. Other international organizations, governmental
and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information
technology
...
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