ETSI EG 202 518 V1.1.1 (2006-09) Speech Processing

ETSIEG202518V1.1.1(2006-09)ETSIGuideSpeechProcessing,TransmissionandQualityAspects(STQ);AcousticOutputofTerminalEquipment;MaximumLevelsandTestMethodologyforVariousApplicationsETSIETSIEG202518V1.1.1(2006-09)2ReferenceDEG/STQ-00019Keywordsacoustic,quality,speech,transmissionETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableat:©EuropeanTelecommunicationsStandardsInstitute2006.Allrightsreserved.DECTTM,PLUGTESTSTMandUMTSTMareTradeMarksofETSIregisteredforthebenefitofitsMembers.TIPHONTMandtheTIPHONlogoareTradeMarkscurrentlybeingregisteredbyETSIforthebenefitofitsMembers.3GPPTMisaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners.ETSIETSIEG202518V1.1.1(2006-09)3ContentsIntellectualPropertyRights................................................................................................................................4Foreword.............................................................................................................................................................41Scope........................................................................................................................................................52References................................................................................................................................................53Definitions,symbolsandabbreviations...................................................................................................63.1Definitions..........................................................................................................................................................63.2Symbols..............................................................................................................................................................73.3Abbreviations.....................................................................................................................................................74Introduction..............................................................................................................................................75Acousticaloutputsignals..........................................................................................................................85.1Maximumlevelfor8-hourdailynoiseexposure(TWA)...................................................................................85.2Maximumlevelforpeaksoundpressure(500ms)..........................................................................................95.3Othernoiseexposurerequirement......................................................................................................................96TestEquipment,setupsandprocedures.................................................................................................106.1Testequipment.................................................................................................................................................106.1.1Selectionofartificialear.............................................................................................................................106.1.2HRTFFiltering...........................................................................................................................................106.1.3Weightings..................................................................................................................................................116.2Measurementmethods......................................................................................................................................116.2.1Dailynoiseexposure(TWA)measurement................................................................................................116.2.1.1Measurementprocedure........................................................................................................................126.2.2Peaksoundpressureexposureandlongduration