Designation:E1130−16StandardTestMethodforObjectiveMeasurementofSpeechPrivacyinOpenPlanSpacesUsingArticulationIndex1ThisstandardisissuedunderthefixeddesignationE1130;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONThisisoneofaseriesoftestmethodsforassessingspeechprivacyinbuildings.Thisspecificstandardisdesignedtoassessthespeechprivacybetweenlocationsinopenplanspaces,whereoccupantsareseparatedonlybypartial-heightpartitionsandfurnishings.Anothertestmethoddealswithassessingspeechprivacyforclosedrooms.Arelatedtestmethoddealswiththelaboratorymeasurementofinterzoneattenuationforopenplancomponentsintendedtoprovidespeechprivacy,suchaspartialheightspacedividers,ceilingsystemsandwallfinishes.1.Scope1.1Thistestmethoddescribesameansofobjectivelyassessingspeechprivacybetweenlocationsinopenplanspaces.Thistestmethodreliesuponacousticalmeasurements,publishedinformationonspeechlevels,andstandardmethodsforassessingspeechcommunication.Thistestmethoddoesnotmeasuretheperformanceofindividualopenplancomponentswhichaffectspeechprivacy;butrather,itassessestheprivacywhichresultsfromaparticularconfigurationofcomponents(1,2).21.2Thistestmethodisintendedtobeafieldtestfortheassessmentofspeechprivacyinactualopenplanspaces.However,thistestmethodcouldbeusedinmock-upspacesandinenvironmentsarrangedtosimulateanopenplanspace.1.3Thistestmethodissuitableforuseinmanyopenplanspacesincludingtraditionalopenoffices,focusareas,andcollaborationspaces.Inadditiontoofficebuildings,thesetypesofspaceswillalsobefoundinhealthcarebuildings,institu-tionalspaces,schools,etc.Itisnotdirectlyapplicableformeasuringthespeechprivacybetweenopenplanandenclosedspacesorbetweenfullyenclosedspaces.1.4ThistestmethodreliesupontheArticulationIndex,whichobjectivelypredictstheintelligibilityofspeech.WhileboththeArticu...
