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Es 201 980 V3.2.1 (2012-06) ETSI ES 201 980 V3.2.1 (2012-06) ETSI Standard Digital Radio Mondiale (DRM); System Specification 2 ETSI ES 201 980 V3.2.1 (2012-06) Reference RES/JTC-DRM-26 Keywords broadcasting, digital, DRM, radio ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. © European Telecommunications Standards Institute 2012. © European Broadcasting Union 2012. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI 3 ETSI ES 201 980 V3.2.1 (2012-06) Contents Intellectual Property Rights ................................................................................................................................ 8 Foreword ............................................................................................................................................................. 8 Introduction ........................................................................................................................................................ 8 1 Scope ...................................................................................................................................................... 10 2 References .............................................................................................................................................. 10 2.1 Normative references ....................................................................................................................................... 10 2.2 Informative references ...................................................................................................................................... 10 3 Definitions, symbols, abbreviations and conventions ............................................................................ 11 3.1 Definitions ........................................................................................................................................................ 11 3.2 Symbols ............................................................................................................................................................ 12 3.3 Abbreviations ................................................................................................................................................... 12 3.4 Conventions ...................................................................................................................................................... 14 4 General characteristics ........................................................................................................................... 14 4.1 System overview .............................................................................................................................................. 14 4.2 System architecture .......................................................................................................................................... 14 4.3 Source coding ................................................................................................................................................... 16 4.4 Transmission modes ......................................................................................................................................... 17 4.4.1 Signal bandwidth related parameters .......................................................................................................... 17 4.4.2 Transmission efficiency related parameters ................................................................................................ 17 4.4.2.1 Coding rates and constellations ............................................................................................................. 17 4.4.2.2 OFDM parameter set ............................................................................................................................. 17 5 Source coding modes.............................................................................................................................. 19 5.1 Overview .......................................................................................................................................................... 19 5.1.1 AAC audio coding ...................................................................................................................................... 19 5.1.2 MPEG CELP coding ................................................................................................................................... 20 5.1.3 MPEG HVXC coding ................................................................................................................................. 20 5.1.4 SBR coding ................................................................................................................................................. 21 5.1.5 PS coding .................................................................................................................................................... 21 5.1.6 Error concealment ....................................................................................................................................... 21 5.1.7 MPEG Surround coding .............................................................................................................................. 22 5.2 UEP and audio super framing........................................................................................................................... 22 5.3 AAC coding...................................................................................................................................................... 23 5.3.1 AAC ............................................................................................................................................................ 23 5.3.1.1 AAC audio super frame ........................................................................................................................ 25 5.3.2 AAC + SBR ................................................................................................................................................ 26 5.3.3 AAC error concealment .............................................................................................................................. 27 5.3.3.1 Interpolation of one corrupt frame ........................................................................................................ 27 5.3.3.2 Fade-out and fade-in ............................................................................................................................. 28 5.3.3.3 Concealment granularity ....................................................................................................................... 28 5.3.4 AAC + MPS ................................................................................................................................................ 28 5.4 MPEG CELP coding ........................................................................................................................................ 29 5.4.1 MPEG CELP .............................................................................................................................................. 29 5.4.1.1 CELP audio super frame ....................................................................................................................... 30 5.4.2 CELP + SBR ............................................................................................................................................... 32 5.4.3 CELP error concealment ............................................................................................................................. 33 5.5 HVXC coding ................................................................................................................................................... 33 5.5.1 Definitions .................................................................................................................................................. 33 5.5.1.1 HVXC source coder parameters ...........................................................................................................
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