【英文标准名称】:Acoustics-Normalequal-loudness-levelcontours
【原文标准名称】:声学.标准等响曲线
【标准号】:BSISO226-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-09-03
【实施或试行日期】:2003-09-03
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;听力测定;响度级;响度;声级;等响度级;音频;声强;频率;声压级;声学;基础;规范;尺寸;定义
【英文主题词】:Acousticmeasurement;Acoustics;Audiofrequencies;Audiometry;Basis;Definition;Definitions;Equalloudnesslevel;Frequencies;Loudnesslevel;Loudnesslevels;Size;Soundintensity;Soundlevel;Soundpressurelevel;Specifications
【摘要】:ThisInternationalStandardspecifiescombinationsofsoundpressurelevelsandfrequenciesofpurecontinuoustoneswhichareperceivedasequallyloudbyhumanlisteners.Thespecificationsarebasedonthefollowingconditions:a)thesoundfieldintheabsenceofthelistenerconsistsofafreeprogressiveplanewave;b)thesourceofsoundisdirectlyinfrontofthelistener;c)thesoundsignalsarepuretones;d)thesoundpressurelevelismeasuredatthepositionwherethecentreofthelistener'sheadwouldbe,butintheabsenceofthelistener;e)listeningisbinaural;f)thelistenersareotologicallynormalpersonsintheagerangefrom18yearsto25yearsinclusive.ThedataaregiveningraphicalforminAnnexAandinnumericalforminAnnexBforthepreferredfrequenciesintheone-third-octaveseriesfrom20Hzto12500Hz,inclusive,inaccordancewithISO266.
【中国标准分类号】:A42
【国际标准分类号】:13_140
【页数】:28P;A4
【正文语种】:英语