ISO/IEC INTERNATIONAL STANDARD 14496-23 First edition 2008-02-01 Information technology Coding of audio-visual objects - Part 23: Symbolic Music Representation Technologies de Il'information - Codage des objets audiovisuels Partie 23: Représentation symbolique de la musique Reference number ISO/IEC 14496-23:2008(E) ISo IEC @ISO/IEC2008 HS under I without license from IHS Not for Resale ISO/IEC 14496-23:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT @ ISO/IEC2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO/IEC 2008-All rightsreserved py IHS unde I without license from IHS Not for Resale ISO/IEC 14496-23:2008(E) Contents Page Foreword. iv 1 Scope 1 2 Normative references 3 Conformance 4 Terms and Definitions, 5 Conventions .... 5.1 Naming convention.. 5.2 Documentation convention 6 Symbols and abbreviations.. 7 SMR Bitstream. 7.1 Introduction......... 7.2 SMR Bitstream Introduction ... 7.3 SMR Bitstream Description .. 7.4 Coding XML Segments...... 12 7.5 Decoding Process.... 14 8 Symbolic Music eXtensible Format (SM-XF): the Symbolic Music Representation .... 8.1 Symbolic Music eXtensible Format (SM-XF) introduction..... 16 8.2 SM-XF Definitions .... 16 8.3 Single Part (SMXF_Part)... 26 8.4 Main Score (SMXF_Main)... 8.5 Lyrics (SMXF Lyric) 105 9 Symbolic Music Synchronization Information (SM-SI) 113 9.1 Symbolic Music Synchronization Information (SM-Sl) Introduction 113 9.2 SM.SI Binary Format.... 10 Symbolic Music Formatting Language (SM-FL).... 10.1 SMR Formatting Introduction .... 114 10.2 General architecture of the formatting engine .. 114 10.3 The SMR Rendering Rule Approach...... 116 10.4 Syntax of rules and conditions .... 10.5 SM-FL Examples.. 149 10.6 Rules and conditions for beams on multiple staves.. 154 11 Relationship of SMR with other parts of the standard. .167 11.1 11.2 SMR and MPEG-4 Systems.. 168 11.3 SMR and MIDI (through MPEG-4 Structured Audio) 171 11.4 SMR and MPEG fonts.... 171 12 SMR Object Types for Profiles . 171 12.1 ..171 12.2 Simple Object Type.. 172 12.3 Main Object Type .. 172 13 List of digital annexes .. 172 Bibliography 173 ili ted without licensefrom IHS Not for Resale ISO/IEC 14496-23:2008(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnica Commission)formthespecializedsystemforworldwidestandardization.Nationalbodiesthataremembersof ISOorIECparticipate in thedevelopment ofInternationalStandards through technical committees established by the respective organization to deal with particular fields of technical activity. IsO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IsO and IEC, also take part in the work. In the field of information technology,