【英文标准名称】:Acoustics-Referencezeroforthecalibrationofaudiometricequipment-Referenceequivalentthresholdsoundpressurelevelsforpuretonesandcircumauralearphones
【原文标准名称】:声学.校正听力设备的基准零级.纯音和环绕耳机的基准等效阈声压级
【标准号】:BSENISO389-8-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-06-08
【实施或试行日期】:2004-06-08
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:声压;声压级;定义;耳机;标准参考测量方法;声学;听觉阈;参比状态;校正;声音;听力测定
【英文主题词】:Acousticpropertiesandphenomena;Acousticsignals;Acoustics;Airconductionhearingaids;Audiometers;Audiometry;Auditorythreshold;Calibration;Datum;Definition;Definitions;Earphones;Electricalengineering;Headphones;Instruments;Levels;Measuringtechniques;Pure-toneaudiometers;Referenceconditions;Referencelevels;Referencemeasuringmethods;Sound;Soundlevels;Soundpressure;Soundpressurelevel;Thresholdvalue
【摘要】:ThispartofISO389specifiesreferenceequivalentthresholdsoundpressurelevels(RETSPLs)forpuretonesinthefrequencyrangefrom125Hzto8kHz,applicabletothecalibrationofairconductionaudiometersequippedwithaparticularmodelofcircumauralearphones(SENNHEISERHDA200).NOTESomenotesandreferencesonthederivationandthetestconditionsusedtodeterminetherecommendedreferencelevelsaregiveninAnnexAandtheBibliography.ThesoundattenuationoftheearphoneisgiveninAnnexB.ForspeechaudiometersoftypesA-EandB-E(seeIEC60645-2),thecorrectionfiguresoftheearphoneforafree-fieldequivalentoutputaregiveninAnnexC.
【中国标准分类号】:N65
【国际标准分类号】:13_140
【页数】:16P.;A4
【正文语种】:英语