ETSI TS 126 401 V7.0.0 (2007-06) Digital cellular

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ETSITS126401V7.0.0(2007-06)TechnicalSpecificationDigitalcellulartelecommunicationssystem(Phase2+);UniversalMobileTelecommunicationsSystem(UMTS);Generalaudiocodecaudioprocessingfunctions;EnhancedaacPlusgeneralaudiocodec;Generaldescription(3GPPTS26.401version7.0.0Release7)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRETSIETSITS126401V7.0.0(2007-06)13GPPTS26.401version7.0.0Release7ReferenceRTS/TSGS-0426401v700KeywordsGSM,UMTSETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableat:©EuropeanTelecommunicationsStandardsInstitute2007.Allrightsreserved.DECTTM,PLUGTESTSTMandUMTSTMareTradeMarksofETSIregisteredforthebenefitofitsMembers.TIPHONTMandtheTIPHONlogoareTradeMarkscurrentlybeingregisteredbyETSIforthebenefitofitsMembers.3GPPTMisaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners.ETSIETSITS126401V7.0.0(2007-06)23GPPTS26.401version7.0.0Release7IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards,whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver().PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisTechnicalSpecification(TS)hasbeenproducedbyETSI3rdGenerationPartnershipProject(3GPP).Thepresentdocumentmayrefertotechnicalspecificationsorreportsusingtheir3GPPidentities,UMTSidentitiesorGSMidentities.TheseshouldbeinterpretedasbeingreferencestothecorrespondingETSIdeliverables.ThecrossreferencebetweenGSM,UMTS,3GPPandETSIidentitiescanbefoundunder(2007-06)33GPPTS26.401version7.0.0Release7ContentsIntellectualPropertyRights................................................................................................................................2Foreword.............................................................................................................................................................2Foreword.............................................................................................................................................................41Scope........................................................................................................................................................52Normativereferences...............................................................................................................................53Abbreviations...........................................................................................................................................54Outlinedescription...................................................................................................................................65General.....................................................................................................................................................66EnhancedaacPlusgeneralaudiocodec:ANSI-Ccode............................................................................77EnhancedaacPlusgeneralaudiocodec:EnhancedaacPlusencoder.......................................................78EnhancedaacPlusgeneralaudiocodec:EnhancedaacPlusdecoder.......................................................89EnhancedaacPlusgeneralaudiocodec:AdditionalDecoderTools........................................................910EnhancedaacPlusgeneralaudiocodec:Compatibility..........................................................................1011SBRSignallinginPayloadformats.................................