1、BRITISH STANDARDBS EN61937-6:2006Digital audio Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 Part 6: Non-linear PCM bitstreams according to the MPEG-2 AAC and MPEG-4 AAC audio formatsThe European Standard EN 61937-6:2006 has the status of aBritishStandardICS 33.160.60; 35.
2、040 BS EN +A1:2014Part 6: Non-linear PCM bitstreams according to the MPEG-2 AAC and MPEG-4 AAC formatsBS EN 61937-6:2006+A1:2014ISBN 978 0 580 81636 9Amendments/corrigenda issued since publicationDate Comments30 June 2014 Implementation of IEC amendment 1:2014 with CENELEC endorsement A1:2014. Annex
3、 ZA updatedThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2006 The British Standards Institution 2014. Published by BSI Standards Limited 2014National forewordThis British Standard is the UK implementation of EN 61937-6:2006+A1:20
4、14. It is identical to IEC 61937-6:2006, incorporating amendment 1:2014. It supersedes BS EN 61937-6:2006, which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. F
5、or example, text altered by IEC amendment A1 is indicated by .The UK participation in its preparation was entrusted to Technical Committee EPL/100, Audio, video and multimedia systems and equipment.A list of organizations represented on this committee can be obtained on request to its secretary.The
6、publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARD EN 61937-6NORME EUROPENNE EUROPISCHE NORM July 2006 CENELEC Europea
7、n Committee for Electrotechnical StandardizationComit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat:rue de Stassart35, B - 1050 Brussels 2006 CENELEC- All rights of exploitation in any form and by any means reserved worldwide for CENEL
8、EC members.Ref. No. EN 61937-6:2006 EICS 33.160.60, 35.040 Supersedes EN 61937-6:2002English version Digital audio Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 Part 6: Non-linear PCM bitstreamsaccording to the MPEG-2 AAC and MPEG-4 AAC audio formats (IEC 61937-6:2006)Audi
9、onumrique Interface pour les flux de bits audio codage MIC non linaire, conformment la CEI 60958 Partie 6: Flux de bits MIC non linaireselon lesformats MPEG-2 AACet MPEG-4 AAC(CEI 61937-6:2006)Digitalton Schnittstelle fr nichtlinear-PCM-codierteAudio-Bitstrme unter Verwendungvon IEC 60958Teil 6: Nic
10、htlineare PCM-Bitstrmenach MPEG-2 AAC- und MPEG-4 AAC-Audio-Formaten (IEC 61937-6:2006)This European Standard was approved by CENELEC on 2006-07-01. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status
11、 of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member. This European Standard exists in two official versions (English and German). A version
12、 in any other languagemade by translation under the responsibility of a CENELEC member into its own language and notified to theCentral Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republ
13、ic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,Spain, Sweden, Switzerland and the United Kingdom. EN 61937-6:2006+A1April 2014Part 6: Non-linear PCM
14、 bitstreams according to the MPEG-2 AAC and MPEG-4 AAC formatsForeword The text of the International Standard IEC 61937-6:2006, prepared by IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the formal vote and was approved by CENELEC asEN 61937-6 on 2006-07-01 without a
15、ny modification. This European Standard supersedes EN 61937-6:2002. It includes the following significant technical changes with respect to EN 61937-6:2002: a) addition of data-type for MPEG2 AAC low sampling frequency;b) additon of data-type for MPEG-4 AAC. The following dates were fixed: latest da
16、te by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-07-01 latestdate by which the national standards conflictingwith the EN have to be withdrawn (dow) 2009-07-01 Annex ZA has been added by CENELEC. _ Endorsement not
17、iceThe text of the International Standard IEC 61937-6:2006 was approved by CENELEC as a European Standard without any modification. _ EN 61937-6:2006 2 Foreword The text of the International Standard IEC 61937-6:2006, prepared by IEC TC 100, Audio, video and multimedia systems and equipment, was sub
18、mitted to the formal vote and was approved by CENELEC asEN 61937-6 on 2006-07-01 without any modification. This European Standard supersedes EN 61937-6:2002. It includes the following significant technical changes with respect to EN 61937-6:2002: a) addition of data-type for MPEG2 AAC low sampling f
19、requency;b) additon of data-type for MPEG-4 AAC. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-07-01 latestdate by which the national standards conflictingwith the EN h
20、ave to be withdrawn (dow) 2009-07-01 Annex ZA has been added by CENELEC. _ Endorsement noticeThe text of the International Standard IEC 61937-6:2006 was approved by CENELEC as a European Standard without any modification. _ EN 61937-6:2006 2 Foreword The text of the International Standard IEC 61937-
21、6:2006, prepared by IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the formal vote and was approved by CENELEC asEN 61937-6 on 2006-07-01 without any modification. This European Standard supersedes EN 61937-6:2002. It includes the following significant technical chan
22、ges with respect to EN 61937-6:2002: a) addition of data-type for MPEG2 AAC low sampling frequency;b) additon of data-type for MPEG-4 AAC. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endors
23、ement (dop) 2007-07-01 latestdate by which the national standards conflictingwith the EN have to be withdrawn (dow) 2009-07-01 Annex ZA has been added by CENELEC. _ Endorsement noticeThe text of the International Standard IEC 61937-6:2006 was approved by CENELEC as a European Standard without any mo
24、dification. _ EN 61937-6:2006 2 - 2 -BS EN 61937-6:2006+A1:2014EN 61937-6:2006+A1:2014EN 61937-6:2006/A1:2014 - 2 - Foreword The text of document 100/2052/CDV, future IEC 61937-6:2006/A1, prepared by Technical Area 4 “Digital system interfaces and protocols“ of IEC/TC 100 “Audio, video and multimedi
25、a systems and equipment“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61937-6:2006/A1:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop
26、) 2014-12-05 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-03-05 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for iden
27、tifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61937-6:2006/A1:2014 was approved by CENELEC as a European Standard without any modification. Foreword to amendment A1Foreword The text of the International Standard IEC 61937-6:2006, prepared by IEC
28、 TC 100, Audio, video and multimedia systems and equipment, was submitted to the formal vote and was approved by CENELEC asEN 61937-6 on 2006-07-01 without any modification. This European Standard supersedes EN 61937-6:2002. It includes the following significant technical changes with respect to EN
29、61937-6:2002: a) addition of data-type for MPEG2 AAC low sampling frequency;b) additon of data-type for MPEG-4 AAC. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-07-01
30、latestdate by which the national standards conflictingwith the EN have to be withdrawn (dow) 2009-07-01 Annex ZA has been added by CENELEC. _ Endorsement noticeThe text of the International Standard IEC 61937-6:2006 was approved by CENELEC as a European Standard without any modification. _ EN 61937-
31、6:2006 2 Annex ZA(normative)Normative references to international publicationswith their corresponding European publicationsThe following referenced documents are indispensable for the application of this document. For dated references, onlythe edition cited applies. For undated references, the late
32、st edition of the referenced document (including any amendments) applies.NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HDapplies.Publication Year Title EN/HD YearIEC 60958 SeriesDigital audio interface EN 60958 SeriesIEC 61937 S
33、eriesDigital audio - Interface for non-linear PCM encoded audio bitstreamsapplyingIEC 60958 EN 61937 SeriesIEC 61937-1 -1)Digital audio - Interface for non-linear PCM encoded audio bitstreamsapplyingIEC 60958Part 1: GeneralEN 61937-1 20032)IEC 61937-2 -1)Digital audio - Interface for non-linear PCM
34、encoded audio bitstreamsapplyingIEC 60958Part 2: Burst-infoEN 61937-2 20032)ISO/IEC 13818-72004 Information technology - Generic coding ofmoving pictures and associated audio informationPart 7: Advanced Audio Coding (AAC)- - ISO/IEC 14496-3+ A12001 2003 Information technology - Coding of audio-visua
35、l objectsPart 3: Audio- - 1)Undated reference.2)Valid edition at date of issue.EN 61937-6:2006 21 Annex ZA(normative)Normative references to international publicationswith their corresponding European publicationsThe following referenced documents are indispensable for the application of this docume
36、nt. For dated references, onlythe edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HDapplies.Publicatio
37、n ear Title N/HD earIEC 60958 SeriesDigital audio interface N 60958 SeriesIEC 61937 eriesDigital audio - Interface for non-linear PCM encoded audio bitstreamsapplyingIEC 60958 EN 61937 SeriesIEC 61937-1 -1)Digital audio - Interface for non-linear PCM encoded audio bitstreamsapplyingIEC 60958Part 1:
38、GeneralEN 61937-1 20032)IEC 61937-2 -1)Digital audio - Interface for non-linear PCM encoded audio bitstreamsapplyingIEC 60958Part 2: Burst-infoEN 61937-2 20032)ISO/IEC 13818-72004 Information technology - Generic coding ofmoving pictures and associated audio informationPart 7: Advanced Audio Coding
39、(AAC)- - ISO/IEC 14496-3+ A12001 2003 Information technology - Coding of audio-visual objectsPart 3: Audio- - 1)Undated reference.2)Valid edition at date of issue.EN 61937-6:2006 21 - 3 -BS EN 61937-6:2006+A1:2014EN 61937-6:2006+A1:2014EN 61937-6:2006/A1:2014 - 2 - Foreword The text of document 100/
40、2052/CDV, future IEC 61937-6:2006/A1, prepared by Technical Area 4 “Digital system interfaces and protocols“ of IEC/TC 100 “Audio, video and multimedia systems and equipment“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61937-6:2006/A1:2014. The following dates are fi
41、xed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-12-05 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-03-05 Attention is drawn to the
42、 possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61937-6:2006/A1:2014 was approved by CENELEC as a
43、 European Standard without any modification. - 3 - EN 61937-6:2006/A1:2014 Annex ZA (normative) Normative references to international publications with their corresponding European publications Replacement and addition in Annex ZA of EN 61937-6:2006: Publication Year Title EN/HD Year Replace, in the
44、 list of normative references, the following standards by undated references: ISO/IEC 13818-7 - Information technology - Generic coding of moving pictures and associated audio information - Part 7: Advanced Audio Coding (AAC) - - ISO/IEC 14496-3 - Information technology - Coding of audio-visual obje
45、cts - Part 3: Audio - - Add, at the end of the existing list of normative references the following new publication: ISO/IEC 23003-1 - Information technology - MPEG audio technologies - Part 1: MPEG Surround - - - 3 - EN 61937-6:2006/A1:2014 Annex ZA (normative) Normative references to international
46、publications with their corresponding European publications Replacement and addition in Annex ZA of EN 61937-6:2006: Publication Year Title EN/HD Year Replace, in the list of normative references, the following standards by undated references: ISO/IEC 3818-7 - Information technology - Generic coding
47、 of moving pictures and associated audio information - Part 7: Advanced Audio Coding (AAC) - - ISO/IEC 14496-3 - Information technology - Coding of audio-visual objects - Part 3: Audio - - Add, at the end of the existing list of normative references the following new publication: ISO/IEC 23003-1 - I
48、nformation technology - MPEG audio technologies - Part 1: MPEG Surround - - CONTENTSFOREWORD.41 Scope.62Normative references.63Terms, definitions,abbreviations and presentation convention63.1Terms and definitions.63.2Abbreviations73.3Presentation convention74Mapping of theaudio bitstream onto IEC 61
49、93774.1MPEG-2 AAC burst-info.74.2MPEG-4 AAC burst-info.85Format of MPEG-2 AAC andMPEG-4AAC data-bursts85.1Pause data-burst.95.2Audio data-bursts9Figure 1 MPEG-2 AAC data-burst9Figure 2 Latency of MPEG-2 AAC decoding.10Figure 3 MPEG-2 AAC half-rate low samplingfrequency data-burst.11Figure 4 Latency of MPEG
