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【英文标准名称】:StandardTestMethodforObjectiveMeasurementofSpeechPrivacyinOpenPlanSpacesUsingArticulationIndex
【原文标准名称】:使用声音清晰度指数在开放式空间对谈话保密性进行客观量度的标准试验方法
【标准号】:ASTME1130-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E33.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:architecturalacoustics;articulationindex;fieldtest;openoffice;openofficesystem;open-planspace;speechprivacy;Acousticaltests;Ambientsoundpressurelevels;Attenuation;Bandfiltersets;Fieldtesting--soundtransmission;Filters/fil
【摘要】:Thespeechprivacybetweenlocationsinanopenplanspaceisdeterminedbythedegreetowhichintrudingspeechsoundsexceedtheambientsoundpressurelevelsatthelistener''sear;aclassicsignal-to-noiseratiosituation.Thesoundpressurelevelsatthelistener''searfromintrudingspeechdependupon:Theindividualvocaleffortandorientationofthetalker,Theattenuationofspeechsignalsduetodistanceorinterveningbarriers,andThereinforcementofspeechsignalsduetoreflectionsfromsurfacessuchastheceiling,furniturepanels,lightfixtures,walls,orwindows.Theambientsoundpressurelevelswilloftenbecontrolledtomaskintrudingspeech.Thisisaccomplishedbymeansofamaskingsoundsystem.However,incertainpositionsandfrequencyranges,heating,ventilating,orairconditioningequipment(HVAC)maycontributesignificantlytoambientsoundpressurelevels.TheprimarypurposeofthistestmethodistomeasurethespeechprivacyforanaveragespeechspectrumusingthestandardArticulationIndexmethod.Thisrequiresmeasurementoftherelevantacousticalcharacteristicsdiscussedin5.2and5.3forapairoflocationsandcalculationoftheArticulationIndexusinganaveragespeechspectrum.Theaveragespeechspectrumisformaletalkersspeakingwithnormalvoiceeffort.TheArticulationIndexrangesfrom0.00,wherespeechisunintelligible,to1.00,whereallindividualspokenwordscanbeunderstood.Cautionshouldbeexercisedininterpretingthenumericalresultsofthistestmethod.ThereisaneedforfurtherresearchtoestablishtherelationshipofArticulationIndextospeechprivacy.Onepurposeofthistestmethodistoencouragethemeasurementofdataandfurtherresearchonthistopicperhapsleadingtodevelopmentofwell-documentedspeechprivacycategoriesandcriteria.Thistestmethodcanbeusedto:Comparetherelativeprivacyaffordedbetweendifferentlocationswithinopenplanspaces.Evaluatehowchangesinopenplancomponents(barriers,furniture,ceilings,maskingsound,orwallpanels)affectspeechprivacy.Measurespeechprivacyobjectivelyforcorrelationwithsubjectiveresponses.Thistestmethodcouldbeoneelementofaperformanceoracceptancetestprocedure.However,manyadditionalitemswouldneedtobespecifiedtousethistestmethodforperformancetestingofanopenplanenvironment,suchas,thenumberoflocationstobetestedandmethodofselectingthoselocations,andthemethodofaveragingtheresults.SpecifyinganumericalcriterionintermsoftheArticulationIndexisalsonecessaryforacceptancetesting;however,theselectionofsuchacriterionandpermissibledeviationsshouldbeundertakenwithcareinviewofthepresentstate-of-the-artasdiscussedin5.5.1.1Thistestmethoddescribesameansofmeasuringspeechprivacyobjectivelybetweenlocationsinopenplanspaces.Thistestmethodreliesuponacousticalmeasurements,publishedinformationonspeechlevels,andstandardmethodsforassessingspeechcommunication.Thistestmethoddoesnotmeasuretheperformanceofindividualopenplancomponentswhichaffectspeechprivacy;itmeasurestheprivacywhichresultsfromaparticularconfigurationofcomponents(1,2).1.2Thistestmethodisintendedtobeafieldtestforthemeasurementofspeechprivacyinactualopenplanspaces.However,thistestmethodcouldbeusedinanenvironmentarrangedtosimulateanopenplanspace.1.3Thistestmethodissuitableforuseinmanyopenplanspacessuchasopenplanoffices,healthcarespaces,institutionalspaces,schools,etc.Itisnotapplicableformeasuringthespeechprivacybetweenopenplanandenclosedspacesorbetweenfullyenclo......
【中国标准分类号】:P31
【国际标准分类号】:17_140_01
【页数】:6P.;A4
【正文语种】:英语


【英文标准名称】:Householdandsimilarelectricalappliances-Safety-Part1:generalrequirements.
【原文标准名称】:家用和类似用途电器的安全.第1部分:一般要求
【标准号】:NFC73-800/A13-2009
【标准状态】:现行
【国别】:法国
【发布日期】:2009-09-01
【实施或试行日期】:2009-09-19
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Access;Ageingtests;Applications;Ballpressuretestequipment;Batteries;Burningtests;Capacitors;Circuitdiagrams;Circuits;Classesofprotection;Classification;Clearances;Components;Conduits;Connections;Controllers;Currents;Delimiters;Design;Deviations;Dielectricstrength;Distances;Domestic;Domesticsafety;Durability;Earthconductors;Earthingconductorterminations;Electricappliances;Electriccables;Electrichouseholdappliance;Electrichouseholdappliances;Electricmains;Electricterminals;Electricalappliances;Electricalcomponents;Electricalengineering;Electricalhouseholdappliances;Electricalsafety;Energyregulators;Environment;Equipmentsafety;Evaluations;Examination(qualityassurance);Firebars;Firehazards;Fireresistance;Firerisks;Firesafety;Frequencies;Generalconditions;Glow-wiretests;Hand-operateddevices;Hardness;Heaters;Heating;Heatingappliances;Householdequipment;Householduse;Impedance;Inexpert;Information;Inputcurrent;Inscription;Inspection;Insulatingmaterials;Insulations;Layout;Leakagecurrent;Leakagepaths;Loadability;Maintenance;Measurement;Measuringtechniques;Mechanicalbehaviourofmaterials;Mechanicalproperties;Mechanicalsafety;Mechanism;Metalpart;Methods;Moistureresistance;Motor-drivendevice;Motors;Normaloperation;Operatingconditions;Operatingtemperatures;Operation;Overload;Overloadprotection;Overvoltage;Parts;Pipes;Powerconsumption;Protection;Protectionagainstelectricshocks;Protectiondevices;Protectivedevices;Quality;Radiation;Ratedvoltages;Ratings;Remotecontroltechnology;Resistors;Routinechecktests;Rustprotection;Safety;Safetyengineering;Safetymeasures;Safetyrequirements;Scope;Screws(bolts);Specification(approval);Stability;Start;Strainrelief;Strengthofmaterials;Stress;Switches;Temperaturerise;Tensileforce;Terminology;Testing;Testingconditions;Thermalstability;Timeswitches;Tools;Torque;Toxicity;Trackingindex;Transformers;Transient;Visibility
【摘要】:
【中国标准分类号】:Y60
【国际标准分类号】:97_030
【页数】:5P;A4
【正文语种】:其他