【英文标准名称】:Audioandaudiovisualequipment-Digitalaudioparts-Basicmeasurementmethodsofaudiocharacteristics-Part4:Personalcomputer
【原文标准名称】:音频和视听设备.数字音频部件.音频特征的基本测量方法.第4部分:个人电脑
【标准号】:BSEN61606-4-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2007-02-28
【实施或试行日期】:2007-02-28
【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】:
【英文主题词】:
【摘要】:ThispartofIEC61606specifiesthebasicmeasurementmethodsofalinearPCMsignalforanaudiopartofpersonalcomputers(PCs)andappliestobothdesktopandportablecomputers.ThecommonmeasuringconditionsandmethodsaredescribedinIEC61606-1.SpecificconditionsandmethodsofmeasurementforPCsaregiveninthisstandard.NOTE1Themethodsdescribedaremostlybasedonsamplingfrequenciesfrom8kHzto192kHzandbitlengthfrom8bitto24bit.NOTE2Thisstandarddescribestestsforequipmentwhichhasdigitalinputwithanalogueoutputandanalogueinputwithdigitaloutput.DigitalinputdataareprovidedfromaninternalHDDorothermemorymediaandoutputdigitaldataarerecordedtoaninternalHDDormainmemories.NOTE3Themethodsspecifiedinthisstandardarenotapplicabletosystemsincorporatingbit-ratereduceddigitalaudiosignalsthathavedatalossorto1-bitsignals.ThispartdoesnotapplytoanalogueinputwithanalogueoutputanddigitalinputwithdigitaloutputasdescribedinIEC61606-1.NOTE4WhenaCPUinaPCisoverloadedbytasksotherthanthoseforaudioinput/output,thePCmayfailtorecord/reproducethewholeaudiodata.Thisstandardappliesonlytothemeasurementinwhichinput/outputdataarerecorded/reproducedwithoutsuchmissingdata.TheperformanceofaPCwithmissingaudiodatamaybeevaluatedbytheshort-termdistortionmeasurementalthoughsuchevaluationisnotwithinthescopeofthisstandard.
【中国标准分类号】:M70
【国际标准分类号】:35_020;33_160_30
【页数】:34P.;A4
【正文语种】:英语