【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
基本信息
标准名称: | 带式压榨过滤机 |
英文名称: | Filterbelt press |
中标分类: |
机械 >>
通用机械与设备 >>
分离机械 |
ICS分类: |
|
替代情况: | 替代JB/T 8102.1-95(原标准号GB 9067-88);JB/T 8102.2-95(原标准号GB 10899-89);JB/T 8102.3-95;被JB/T 8102-2008代替 |
发布部门: | 全国分离机械标准化技术委员会 |
发布日期: | 1999-07-12 |
实施日期: | 2000-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 2008-11-01 |
归口单位: | 全国分离机械标准化技术委员会 |
出版社: | 机械工业出版社 |
出版日期: | 2000-01-01 |
页数: | 14 页 |
批文号: | 国机管[1999]392号 |
适用范围
JB/T 8102-1999 本标准是对 JB/T 8102.1-95《带式压榨过滤机 型式与基本参数》、JB/T 8102.2-95《带式压榨过滤机 技术条件》和 JB/T 8102.3-95《带式压榨过滤机 试验方法》的修订与合并。 本标准规定了带式压榨过滤机型式与基本参数,技术要求,试验方法,检验规则,标志、包装、运输与贮存等。 本标准适用于带式压榨过滤机。 本标准于 1988 年 4 月 18 日以 GB 9067-88、1989 年 2 月 28 日以 GB 10898-89、GB 10900-89 首次发布,于 1996 年 4 月调整为 JB/T 8102.1~8102.3-95。
前言
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引用标准
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所属分类: 机械 通用机械与设备 分离机械