BS EN 61937-7-2005 Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 7 Non-linear PCM bitstreams according to the ATRAC ATRAC2 3 and A.pdf

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1、BRITISH STANDARDBS EN 61883-6:2005Consumer audio/video equipment Digital interface Part 6: Audio and music data transmission The European Standard EN 61883-6:2005 has the status of a British StandardICS 33.160.01; 35.200g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44

2、g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 61883-6:2005This British Standard was published under the authority of the Standard

3、s Policy and Strategy Committee on 27 January 2006 BSI 27 January 2006ISBN 0 580 47581 6National forewordThis British Standard is the official English language version of EN 61883-6:2005. It is identical with IEC 61883-6:2005. It supersedes BS EN 61883-6:2002 which will be withdrawn on 1 November 20

4、08.The UK participation in its preparation was entrusted to Technical Committee EPL/100, Audio, video and multimedia systems, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which

5、 implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publicatio

6、n does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/Eu

7、ropean committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages

8、2 to 77 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 61883-6 NO

9、RME EUROPENNE EUROPISCHE NORM November 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploit

10、ation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61883-6:2005 E ICS 33.160.01; 35.200 Supersedes EN 61883-6:2002English version Consumer audio/video equipment - Digital interface Part 6: Audio and music data transmission (IEC 61883-6:2005) Matriel audio/video gr

11、and public - Interface numrique Partie 6: Transmission de donnes audio et musicales (CEI 61883-6:2005) Audio-Video-Gerte der Unterhaltungselektronik - Digitale Schnittstelle Teil 6: bertragungsprotokoll fr Ton- und Musikdaten (IEC 61883-6:2005) This European Standard was approved by CENELEC on 2005-

12、11-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be ob

13、tained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in two official versions (English, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secr

14、etariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Nor

15、way, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSIForeword The text of document 100/1001/FDIS, future edition 2 of IEC 61883-6, prepared by technical area 4, Digital sys

16、tem interfaces and protocols, of IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61883-6 on 2005-11-01. This European Standard supersedes EN 61883-6:2002. It contains the following significant technical c

17、hanges with respect to EN 61883-6:2002: a) It extends the AM824 data format transmission and specifies more details in order to reduce the ambiguities of the first edition. b) It introduces new Clauses 4, 10, 11 and 12 as well as Annex D and, in 8.2, specifies new data types for SMPTE time code, sam

18、ple count, high-precision multi-bit linear audio and ancillary data. c) It changes the terminology “raw audio data” to “multi-bit linear audio (MBLA)”. d) It defines, in Clause 11, sequence multiplexing and MIDI data required to the AM824 adaptation process. e) It describes, in Clause 12, applicatio

19、n-specific data transmission such as DVD-audio and SACD. f) It specifies, in Subclause 12.1.1.8, the N-flag that indicates command-based rate control and defines new sampling frequency code (SFC) definition and interpretation. The following dates were fixed: latest date by which the EN has to be imp

20、lemented at national level by publication of an identical national standard or by endorsement (dop) 2006-08-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2008-11-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the Internatio

21、nal Standard IEC 61883-6:2005 was approved by CENELEC as a European Standard without any modification. _ EN 61883-6:2005 2 Licensed Copy: Wang Bin, na, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 3 EN 61883-6:2005 CONTENTS 1 Scope 7 2 Normative references .7 3 Terms and definition

22、s 7 4 Reference model for data transmission .9 4.1 Application layer10 4.2 Adaptation layer 10 4.3 Packetization layer 11 5 Transport requirements.12 5.1 Arbitrated short bus reset 12 5.2 Bit, byte, and quadlet ordering .12 6 Packet header for audio and music data12 6.1 Isochronous packet header for

23、mat .12 6.2 CIP header format .12 7 Packetization13 7.1 Packet transmission method 13 7.2 Transmission of timing information.13 7.3 Time stamp processing14 7.4 Transmission control15 8 Event types 16 8.1 General .16 8.2 AM824 data.19 8.3 32-bit floating-point data 27 8.4 24-bit * 4 audio pack27 8.5

24、32-bit generic data.28 9 FDF definition.28 9.1 Introduction .28 9.2 Basic format 29 9.3 Special format .30 10 FDF definition for AM824 data 31 10.1 Definition of N-flag.31 10.2 Supplementary SFC definition31 10.3 Clock-based rate control mode (FDF = 0000 0xxx2) .32 10.4 Command-based rate control mo

25、de (FDF = 00001xxx2)33 11 AM824 adaptation process34 11.1 Introduction .34 11.2 Basic sequence conversion34 11.3 Sequence multiplexing.34 11.4 Compound data block structure35 12 AM824 sequence adaptation layers.39 12.1 General .39 12.2 DVD-Audio 55 12.3 SACD definition .58 Licensed Copy: Wang Bin, n

26、a, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 61883-6:2005 4 Annex A (informative) Blocking transmission method 63 Annex B (informative) Synchronization issues 65 Annex C (informative) Catching up in non-blocking transmission method.67 Annex D (informative) Transport characteri

27、stics68 Bibliography .76 Figure 1 Reference model for audio and music data transmission .9 Figure 2 Reference model for AM824 data transmission10 Figure 3 Implementation example of receiver11 Figure 4 Isochronous packet header.12 Figure 5 Common isochronous packet (CIP) format 13 Figure 6 Non-blocki

28、ng transmission method15 Figure 7 Transmission parameters .16 Figure 8 Cluster events17 Figure 9 Pack and cluster events18 Figure 10 Pack event with 24-bit event sequence .18 Figure 11 Generic AM824 format19 Figure 12 AM824 data with SUB LABEL .19 Figure 13 AM824 LABEL allocation map (informative).2

29、0 Figure 14 IEC 60958-conformant data format .21 Figure 15 MBLA data .21 Figure 16 Raw audio data 22 Figure 17 Alignment of 20-bit data in 24-bit field .22 Figure 18 MIDI conformant data format.23 Figure 19 No-data format .23 Figure 20 High-precision multi-bit linear audio data.24 Figure 21 Generic

30、high-precision quadlet sequence24 Figure 22 Generic ancillary data.25 Figure 23 Ancillary no data.25 Figure 24 General format for ASID .26 Figure 25 General format for application-specific ancillary data.27 Figure 26 32-bit floating-point data format 27 Figure 27 24-bit * 4 audio pack format28 Figur

31、e 28 32-bit generic data format.28 Figure 29 Generic FDF definition29 Figure 30 FDF code for NO-DATA packet .30 Figure 31 Structure of FDF for AM824 data type .31 Figure 32 SFC interpretation 31 Figure 33 FDF for AM824 and AM824 LABEL space (informative) .32 Figure 34 Adaptation to AM824 sequence.34

32、 Figure 35 Asynchronous sequence multiplexing35 Annex ZA (normative) Normative references to international publications with their77corresponding European publications.Licensed Copy: Wang Bin, na, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 5 EN 61883-6:2005 Figure 37 Condition of

33、 AM824 rule .36 Figure 38 Generic compound data block structure 37 Figure 39 Example of unspecified region structure38 Figure 40 Generic one-bit audio quadlet .46 Figure 41 Generic one-bit audio quadlet sequence .47 Figure 42 One-bit audio DST encoded quadlet47 Figure 43 Multiplexing of MIDI data st

34、reams .48 Figure 44 High-precision first ancillary data 49 Figure 45 IEC 60958-conformant data with high-precision data .50 Figure 46 Common and application-specific ancillary data with high-precision data .51 Figure 47 High-precision channel assignment ancillary data51 Figure 48 Example of high-pre

35、cision data .52 Figure 49 Example of double-precision data .53 Figure 50 Example of double-precision compound data.54 Figure 51 Data transmitted at data starting-point 55 Figure 52 Data transmitted at every data block .56 Figure 53 Ancillary data for CCI .56 Figure 54 Ancillary data for ISRC .57 Fig

36、ure 55 Basic data block of DVD-Audio stream57 Figure 56 Example of DVD-Audio data .58 Figure 57 SACD ancillary data .59 Figure 58 SACD supplementary data60 Figure 59 SACD Track_Mode the control, status and machine-readable description of these modules or devices should be defined outside of this doc

37、ument according to each application area. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amend

38、ments) applies. IEC 60958 (all parts), Digital audio interface IEC 61883-1:2003, Consumer audio/video equipment Digital interface Part 1: General IEC 61883-6:2002, Consumer audio/video equipment Digital interface Part 6: Audio and music data transmission protocol IEEE 754:1985, Standard for Binary F

39、loating-Point Arithmetic IEEE 1394: Standard for a High Performance Serial Bus 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61883-1, as well as the following, apply. 3.1 32-bit floating-point data data type which is defined in IEEE 754:985 3.2 AM8

40、24 Data 32-bit data consisting of an 8-bit label and 24-bit data 3.3 A/M protocol protocol for the transmission of audio and music data over IEEE 1394 Licensed Copy: Wang Bin, na, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 61883-6:2005 8 3.4 ASID Audio Software Information Deli

41、very (see http:/riaj.japan-music.or.jp/tech/asid/e.html ) 3.5 AV/C Audio Video Control 3.6 DVD 3.7 Digital Versatile Discs (see http:/www.dvdforum.org/index.htm) MIDI Musical Instrument Digital Interface NOTE The complete MIDI 1.0 detailed specification, Version 96.1, March 1996, is a specification

42、for the interconnection of digital music processing devices (for example, keyboards and signal processors) and computers. 3.8 music data data generally used for controlling a tone generator. NOTE The data defined in the MIDI specification, which may be called MIDI data, are an example of music data.

43、 3.9 reserved keyword used to describe objects bit, byte, quadlet, octet, and field or the code values assigned to these objects, the object or the code value being set aside for future standardization by the IEC 3.10 SACD SACD Super Audio CD (see http:/ 3.11 stream uni-directional data transmission

44、 3.12 time stamp quantized timing in which an event occurs based on a reference clock NOTE The reference clock is CYCLE_TIME unless otherwise specified in this standard. Licensed Copy: Wang Bin, na, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 9 EN 61883-6:2005 4 Reference model fo

45、r data transmission This clause describes a reference model for data transmission. Packetization layer CIP layer packetize depacketizeAdaptation layer Additional infoAudio sample Additional info Audio sampleSampling_FrequencyTxNominal_ Sampling_ Frequency Transmitter Receiver Application specificati

46、on A/M protocol specification Nominal _ Sampling_ Frequency Application layer Application sequence Event sequence Event sequence FDF DBC Transfer_ FrequencyTxApplication sequence Sampling_FrequencyRxFDF DBCTransfer_ FrequencyRxConversion process Conversion process Figure 1 Reference model for audio

47、and music data transmission IEC 1734/05 Licensed Copy: Wang Bin, na, Thu Jun 21 01:42:08 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 61883-6:2005 10 Packetization layer CIP layer packetize depacketizeAdaptation layer Compound data structure LABELAdditional infoAudio sampleCompound data structure LA

48、BEL Additional info Audio sampleSampling_FrequencyTxNominal_ Sampling_ Frequency Transmitter Receiver Application specification A/M protocol specification for AM824 Nominal _ Sampling_ Frequency Application layer Application sequence AM824 sequence AM824 sequence FDF DBC Transfer_ FrequencyTxApplica

49、tion sequence Sampling_FrequencyRxFDF DBCTransfer_ FrequencyRxFigure 2 Reference model for AM824 data transmission Figure 1 gives an outline for audio data transmission from a transmitter to a receiver. It has four major layers denoted as CIP (common isochronous packet) layer, packetization layer, adaptation layer and application layer. 4.1 Appli