Designation:E1179−13StandardSpecificationforSoundSourcesUsedforTestingOpenOfficeComponentsandSystems1ThisstandardisissuedunderthefixeddesignationE1179;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationstatestherequirementsforsoundsourcesusedformeasuringthespeechprivacybetweenopenofficesandformeasuringthelaboratoryperformanceofacousticalcomponents(seeTestMethodsE1111andE1130).1.2Thesoundsourceshallbealoudspeakerlocatedinanenclosuredrivenwithanappropriatetestsignal.1.3Thisspecificationdescribesthesoundsourceandmethodofqualifyingitusingaspecialqualificationsignal.Testsignalsrequiredbyopenofficetestmethodsmaydiffer.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.2.ReferencedDocuments2.1ASTMStandards:2C384TestMethodforImpedanceandAbsorptionofAcous-ticalMaterialsbyImpedanceTubeMethodC634TerminologyRelatingtoBuildingandEnvironmentalAcousticsE1050TestMethodforImpedanceandAbsorptionofAcousticalMaterialsUsingaTube,TwoMicrophonesandaDigitalFrequencyAnalysisSystemE1111TestMethodforMeasuringtheInterzoneAttenuationofOpenOfficeComponentsE1130TestMethodforObjectiveMeasurementofSpeechPrivacyinOpenPlanSpacesUsingArticulationIndex2.2ANSIStandards:3S1.4SpecificationforSoundLevelMetersS1.6PreferredFrequencies,FrequencyLevels,andBandNumbersforAcousticalMeasurementsS1.11SpecificationforOctaveBandandFractionalOBAnalogandDigitalFiltersS1.43SpecificationsforIntegrating-AveragingSoundLevelMeters2.3IECStandards:461260Electroacoustics—Octaveandfractional-octavebandfilters61672–1Electroacoustics—SoundLevelMeters—Part1:Specifications3.Terminology3.1Definitions:3.1.1TheacousticalterminologyusedinthisspecificationisconsistentwithTerminologyC634.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1directivityme...
