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ETSITR102506V1.2.1(2007-11)TechnicalReportSpeechProcessing,TransmissionandQualityAspects(STQ);EstimatingSpeechQualityperCallETSIETSITR102506V1.2.1(2007-11)2ReferenceRTR/STQ-000116mKeywordsspeech,qualityETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableat:©EuropeanTelecommunicationsStandardsInstitute2007.Allrightsreserved.DECTTM,PLUGTESTSTMandUMTSTMareTradeMarksofETSIregisteredforthebenefitofitsMembers.TIPHONTMandtheTIPHONlogoareTradeMarkscurrentlybeingregisteredbyETSIforthebenefitofitsMembers.3GPPTMisaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners.ETSIETSITR102506V1.2.1(2007-11)3ContentsIntellectualPropertyRights................................................................................................................................5Foreword.............................................................................................................................................................51Scope........................................................................................................................................................62References................................................................................................................................................62.1Informativereferences........................................................................................................................................63Definitionsandabbreviations...................................................................................................................73.1Definitions..........................................................................................................................................................73.2Abbreviations.....................................................................................................................................................74General.....................................................................................................................................................75Callproperties..........................................................................................................................................85.1Callstructure......................................................................................................................................................85.2Calllength..........................................................................................................................................................85.2.1Lengthofutterance(sample)........................................................................................................................85.2.2Numberofutterances(samples)...................................................................................................................85.3Calldesign..........................................................................................................................................................86Callqualityonapersamplebasis............................................................................................................96.1Evaluationofthesamples...................................................................................................................................96.2Mathematicalmodellingofthecallquality........................................................................................................96.2.1Impactofbadsamplestowardstheendofacall........................................................................................106.2.2Impactoftheasingleverybadsample.......................................................................................................106.2.3Applicabilityofthemathematicalmodel....................................................................................................106.2.4Validationoftheformula.......................................................
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本文标题：ETSI TR 102 506 V1.2.1 (2007-11) Speech Processing
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