ISO/IEC 13818-7:2006 PDF

Information technology — Generic coding of moving pictures and associated audio information — Part 7: Advanced Audio Coding (AAC)

Название (английский):

ISO/IEC 13818-7:2006

Information technology — Generic coding of moving pictures and associated audio information — Part 7: Advanced Audio Coding (AAC)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 194
Дата публикации:: 9 января 2006 г.
Издание:: ISO/IEC IS 13818 edition 4 version 1
ICS:: 35.040

Язык документа:

ruen

Срок поставки:33 раб. дн. (перевод)

Цена:2 910 €

Описание (английский):

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.

Технические детали

Технический комитет: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
SKU: ISO/IEC 13818-7:2006

Abstract

Overview

ISO/IEC 13818-7:2006 specifies MPEG‑2 Advanced Audio Coding (MPEG‑2 AAC or AAC), a multichannel audio coding standard designed to deliver higher audio quality than MPEG‑1 when backward compatibility is not required. The standard defines bitstream formats, decoder tools, profiles and interoperability rules. It targets high‑quality multichannel audio - providing ITU‑R “indistinguishable” quality at about 320 kbit/s for five full‑bandwidth channels - and documents how to combine MPEG‑2 AAC with Spectral Band Replication (SBR) from ISO/IEC 14496‑3.

Key Topics

Bitstream formats and syntax: Audio Data Interchange Format (ADIF), Audio Data Transport Stream (ADTS), and raw data structures.
Decoder tools (required vs optional): lists required functions (bitstream formatter, noiseless decoding, inverse quantization, rescaling, filterbank/block switching) and optional tools (M/S, prediction, intensity stereo, coupling, TNS, gain control).
Profiles & interoperability: profile definitions and rules to ensure compatibility between encoders and decoders.
Core coding modules: noiseless coding, quantization, scalefactors, joint coding (M/S, intensity), prediction, Temporal Noise Shaping (TNS), filterbank and block switching, gain control.
Program configuration and channel elements: Single Channel Element (SCE), Channel Pair Element (CPE), Low Frequency Enhancement (LFE), Program Config Element (PCE), Data Stream Element (DSE).
Supplementary guidance: how to utilize SBR (bandwidth extension) from ISO/IEC 14496‑3 together with MPEG‑2 AAC.
Implementation notes: normative tables (e.g., Huffman codebooks), informative annexes on encoders, patents and registration procedures.

Applications

Audio codec implementers: encoder and decoder developers building compliant MPEG‑2 AAC products.
Broadcast & streaming: multichannel audio for digital TV, satellite, and streaming services requiring efficient high‑quality audio.

Overview

Key Topics

Bitstream formats and syntax: Audio Data Interchange Format (ADIF), Audio Data Transport Stream (ADTS), and raw data structures.
Decoder tools (required vs optional): lists required functions (bitstream formatter, noiseless decoding, inverse quantization, rescaling, filterbank/block switching) and optional tools (M/S, prediction, intensity stereo, coupling, TNS, gain control).
Profiles & interoperability: profile definitions and rules to ensure compatibility between encoders and decoders.
Core coding modules: noiseless coding, quantization, scalefactors, joint coding (M/S, intensity), prediction, Temporal Noise Shaping (TNS), filterbank and block switching, gain control.
Program configuration and channel elements: Single Channel Element (SCE), Channel Pair Element (CPE), Low Frequency Enhancement (LFE), Program Config Element (PCE), Data Stream Element (DSE).
Supplementary guidance: how to utilize SBR (bandwidth extension) from ISO/IEC 14496‑3 together with MPEG‑2 AAC.
Implementation notes: normative tables (e.g., Huffman codebooks), informative annexes on encoders, patents and registration procedures.

Applications

Audio codec implementers: encoder and decoder developers building compliant MPEG‑2 AAC products.
Broadcast & streaming: multichannel audio for digital TV, satellite, and streaming services requiring efficient high‑quality audio.

ISO/IEC 13818-7:2006 PDF

Технические детали

Abstract

Overview

Key Topics

Applications

Abstract

Overview

Key Topics

Applications

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