CAN CSA-ISO IEC 13818-7-2006 Information technology Generic coding of moving pictures and associated audio information Part 7 Advanced Audio Coding (AAC) (Incorporates Corrigendu.pdf

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1、 Reference numberISO/IEC 13818-7:2006(E)ISO/IEC 2006INTERNATIONAL STANDARD ISO/IEC13818-7Fourth edition2006-01-15Information technology Generic coding of moving pictures and associated audio information Part 7: Advanced Audio Coding (AAC) Technologies de linformation Codage gnrique des images animes

2、 et du son associ Partie 7: Codage du son avanc (AAC) National Standard of CanadaCAN/CSA-ISO/IEC 13818-7:06(ISO/IEC 13818-7:2006)International Standard ISO/IEC 13818-7:2006 (fourth edition, 2006-01-15) has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 13818-7:06, which has b

3、een approved as a NationalStandard of Canada by the Standards Council of Canada.ISBN 1-55436-320-9 December 2006Legal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This p

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19、ake any copies of the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Information technology Generic coding of moving pictures and associated audio informa

20、tion Part 7: Advanced Audio Coding (AAC)TECHNICAL CORRIGENDUM 2Technical Corrigendum 2:2012 (IDT) toNational Standard of CanadaCAN/CSA-ISO/IEC 13818-7:06(ISO/IEC 13818-7:2006, IDT)NOT FOR RESALE.PUBLICATION NON DESTINE LA REVENTE.CSA Standards Update ServiceTechnical Corrigendum 2:2012 toCAN/CSA-ISO

21、/IEC 13818-7:06March 2012Title:Information technology Gene ric coding of moving pictures and associated audio information Part 7: Ad vanced Audio Coding (AAC)Pagination: 2 pagesTo register for e-mail notification about any updates to this publication go on-line to shop.csa.caclick on E-mail Services

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23、ur personal information.INTERNATIONAL STANDARD ISO/IEC 13818-7:2006 TECHNICAL CORRIGENDUM 2 Published 2010-12-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATIONINTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION LECTROTECHNIQUE INTERNATIONALEInformation t

24、echnology Generic coding of moving pictures and associated audio information Part 7: Advanced Audio Coding (AAC) TECHNICAL CORRIGENDUM 2 Technologies de linformation Codage gnrique des images animes et du son associ Partie 7: Codage du son avanc (AAC) RECTIFICATIF TECHNIQUE 2 Technical Corrigendum 2

25、 to ISO/IEC 13818-7:2006 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. In 15.3.2, “Windowing and Block Switching”, replace: The overlap and add between the EIGHT_SHORT window_seque

26、nce resulting in the windowed time domain values zi,nis described as follows: ICS 35.040 Ref. No. ISO/IEC 13818-7:2006/Cor.2:2010(E) ISO/IEC 2010 All rights reserved Technical Corrigendum 2:2012 to CAN/CSA-ISO/IEC 13818-7:06ISO/IEC 13818-7:2006/Cor.2:2010(E) 2 ISO/IEC 2010 All rights reserved 1); el

27、se cc_signidxgsfb = 1; gain_elementidxgsfb = a += dpcm_gain_elementidxgsfb; /* Do coupling onto target channels */ for (b = 0; b 1); cc_signidxgsfb = 1 - 2*(a gain_elementidxgsfb = a; else cc_signidxgsfb = 1; gain_elementidxgsfb = a += dpcm_gain_elementidxgsfb; /* Do coupling onto target channels */

28、 for (b = 0; b window_group_lengthg; b+) for (sfb = 0; sfb max_sfb; sfb+) if (sfb_cbgsfb != ZERO_HCB) cc_gainidxgsfb = cc_signidxgsfb * cc_scale(-gain_elementidxgsfb); for (i = 0; iswb_offsetsfb+1-swb_offsetsfb; i+) dest_spectrumgbsfbi += cc_gainidxgsfb * source_spectrumgbsfbi; After Annex G, add th

29、e following new annex: Technical Corrigendum 1:2010 to CAN/CSA-ISO/IEC 13818-7-06ISO/IEC 13818-7:2006/Cor.1:2009(E) 4 ISO/IEC 2009 All rights reservedAnnex H (informative) Examples for application specific channel configurations H.1 22.2 multichannel audio sound system Within this Annex, an example

30、of an application specific channel alignment for a 22+2 channel configuration is given. This system consists of three physical speaker layers (top/middle/bottom) for reproducing three dimensional sound. Table H.1 informs about the syntactic elements within the AAC payload, whereas Figure H.1 provide

31、s a graphical representation of the physical loudspeaker arrangement. It highlights the three envisioned loudspeaker planes and the listener orientation (front loudspeakers are on the TV Screen side). Table H.1 Audio syntactic elements and channel alignment for an application specific 22.2 channel c

32、onfiguration number of channels audio syntactic elements, listed in order received channel to speaker mapping 22+2 single_channel_element, channel_pair_element, channel_pair_element, channel_pair_element channel_pair_element single_channel_element, lfe_element, lfe_element, single_channel_element, c

33、hannel_pair_element, channel_pair_element, single_channel_element, channel_pair_element, single_channel_element, single_channel_element, channel_pair_element center front speaker, left, right front center speakers, left, right front speakers, left, right side speakers, left, right back speakers, bac

34、k center speaker, left front low frequency effects speaker, right front low frequency effects speaker, top center front speaker, top left, right front speakers, top left, right side speakers, center of the room ceiling speaker, top left, right back speakers, top center back speaker, bottom center fr

35、ont speaker, bottom left, right front speakers Figure H.1 Graphical representation of the loudspeaker arrangement for an application specific 22.2 channel configuration Technical Corrigendum 1:2010 to CAN/CSA-ISO/IEC 13818-7-06Copyright NoticeThis Amendment to the International Standard contains inf

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