IEC 60958 3 Edition 3 0 201 5 06 INTERNATIONAL STANDARD Digital audio interface – Part 3 Consumer applications IE C 6 0 9 5 8 3 2 0 0 6 0 5 /A M D 2 2 0 1 5 0 6 (e n ) ® AMENDMENT 2 Copyright Internat[.]
I E C 60 58 -3 ® I N TE RN ATI ON AL S TAN D ARD AMENDMENT D i g i tal au d i o i n terface – IEC 60958-3:2006-05/AMD2:201 5-06(en) Part 3: C on s u m er appl i cati on s Edition 3.0 201 5-06 TH I S P U B L I C ATI O N I S C O P YRI G H T P RO TE C T E D C o p yri g h t © I E C , G e n e va , S w i tze rl a n d All rights reserved Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information IEC Central Office 3, rue de Varembé CH-1 21 Geneva 20 Switzerland Tel.: +41 22 91 02 1 Fax: +41 22 91 03 00 info@iec.ch www.iec.ch Abou t th e I E C The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies Ab o u t I E C p u b l i c a ti o n s The technical content of IEC publications is kept under constant review by the IEC Please make sure that you have the latest edition, a corrigenda or an amendment might have been published I E C C atal og u e - webs tore i ec ch /catal og u e E l ectroped i a - www el ectroped i a org I E C pu bl i cati on s s earch - www i ec ch /s earch pu b I E C G l os s ary - s td i ec ch /g l os s ary The stand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents Available for PC, Mac OS, Android Tablets and iPad The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,…) It also gives information on projects, replaced and withdrawn publications The world's leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in additional languages Also known as the International Electrotechnical Vocabulary (IEV) online More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002 Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR I E C J u st P u bl i s h ed - webs tore i ec ch /j u s u bl i s h ed Stay up to date on all new IEC publications Just Published details all new publications released Available online and also once a month by email I E C C u s to m er S ervi ce C en tre - webs tore i ec ch /cs c If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csc@iec.ch I E C 60 58 -3 ® Edition 3.0 201 5-06 I N TE RN ATI ON AL S TAN D ARD AMENDMENT D i g i tal au d i o i n terface – Part 3: C on s u m er appl i cati on s INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.1 60.01 ISBN 978-2-8322-2680-3 Warn i n g ! M ake s u re th at you obtai n ed th i s pu bl i cati on from an au th ori zed d i s tri bu tor ® Registered trademark of the International Electrotechnical Commission –2– I EC 60958-3: 2006/AMD2: 201 I EC 201 FOREWORD This amendment has been prepared by technical area 4: Digital system interfaces and protocols of I EC technical committee 00: Audio, video and multimedia systems and equipment The text of this amendment is based on the following documents: FDI S Report on voti ng 00/2464/FDI S 00/2494/RVD Full information on the voting for the approval of this amendment can be found in the report on voting indicated in the above table The committee has decided that the contents of this amendment and the base publication will remain unchanged until the stability date indicated on the I EC web site under "http: //webstore.iec.ch" in the data related to the specific publication At this date, the publication will be • • • • reconfirmed, withdrawn, replaced by a revised edition, or amended A bilingual version of this publication may be issued at a later date _ I NTRODUCTION to Amendment The revision of I EC 60958-3:2006 has become necessary to document the protocol for transmitting the audio signal and its information in current improved audio formats and systems To apply I EC 60958-3 and its I EC 60958 conformant data format transmitting as part or whole of the multichannel audio data, a general channel assignment number specified in IEC 62574 is added to the C-bit Loudness information is added to the U-bit to enable loudness control I EC 60958-3: 2006/AMD2: 201 I EC 201 –3– N o rm a t i v e re fe re n c e s In sert, in th e list of n orma tive re feren ces, th e followin g n ew publica tion : I EC 62574:201 , A udio, vide o a n d multime dia syste ms – Ge n e l ch a n n e l a ssign me n t of multich a n n e l a udio 2 M o d e c h a n n e l s t a t u s fo rm a t fo r d i g i t a l a u d i o e q u i p m e n t fo r c o n s u m e r u s e T a b l e – M o d e c h a n n e l s t a t u s fo rm a t fo r c o n s u m e r u s e Re pla ce th e rows of byte a n d byte 7, by th e followin g rows: bit 40 41 I n fo rm a t i o n hi dd en PCM 42 G e n e l 43 ch an n el 44 assi g n m en t ch an n el 45 46 n u m b e r fo r A c h a n n e l in 47 G e n e l ch an n el si g n al assi gn ment ch an n el n u m b e r fo r B bit 48 49 G e n e l 50 ch an n el 52 53 54 55 as si g n m en t ch an n el n u m b e r fo r B Byte 6: 51 ch an n el ch an n el I nformation hidden in PCM signal Re pla ce th e e xistin g title of byte of A me n dme n t by th e followin g n e w title : Byte number a n d byte 7: I nformation hidden in PCM and general channel assignment channel Re pla ce , a fte r th e lin e "Additional information in LSB" , th e e xistin g te xt de fin in g bits 49 to 55, by th e followin g: Bits 49 to 53 Bit State Bit 54 to 58 Bit State General channel assignment channel number for A channel 49 50 51 52 53 54 “0 0 0 0” Channel number “1 0 0 0” Channel number “1 1 1 0” Channel number 32 General channel assignment channel number for B channel 55 56 57 58 59 60 “0 0 0 0” Channel number “1 0 0 0” Channel number “1 1 1 0” Channel number 32 A dd, a fter th e existin g NOTE 8, th e followin g n ew p a gra p h : –4– I EC 60958-3: 2006/AMD2: 201 I EC 201 I EC 62574 specifies the general channel assignment The channel number to 32 assignments are specified in Table of I EC 62574: 201 2.4.1 Gen eral u ser d ata format The bits R, S, T, U , V, W have the following meaning: In sert in th e e xistin g te xt de fin in g 111 "Mode" and "RST" a n e w row a fte r "1 Latency" a s follows: Loudness A dd, a fter th e existin g Figure 0, th e followin g n ew subcla use : 3.3 Lou dn ess i nformati on Loudness information is aligned to information units, as shown in Figure 1 M od e RSTU VW 1 000 Lou d ness Fi gu re 1 – Lou dn ess in form ation The second information unit is specified as follows 0001 1 b Loudness information is aligned to IUs of the user information area, as shown in Figure (Start) Q Lou d nessVal u e (Start) Q Lou d nessVal u e (Start) Q (Start) Q Lou d nessRange (Start) Q Lou d nessRange (Start) Q (Start) Q M axTru ePeakLevel (Start) Q M axTru ePeakLevel (Start) Q M axM omentaryLou d n ess (Start) Q M axM omentaryLou d n ess (Start) Q (Start) Q M axSh ortTermLou d ness (Start) Q M axSh ortTermLou d ness (Start) Q (Start) Q (Start) Q Lou d nessVal u e Lou d nessRan ge Lou d nessRange M axTru ePeakLevel M axM omentaryLou d ness M axShortTermLou d n ess M axShortTermLou d ness 0 0 0 0 0 0 0 N OTE Lou d ness information is d efined i n EBU Tech 3285 Fi gu re – Lou dn ess in form ation al i gn ment I EC 60958-3: 2006/AMD2: 201 I EC 201 –5– Bibliography Add the following entry: EBU TECH 3285 Version 2.0, Specification of the Broadcast Wave Format (BWF) _ I N TE RN ATI O N AL E LE CTRO TE CH N I CAL CO M M I S S I O N 3, ru e d e Va re m bé P O B ox CH -1 1 G e n e va S wi tze rl a n d Te l : + 41 F a x: + 22 91 02 1 22 91 03 00 i n fo @i e c ch www 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