【英文标准名称】:Audioandaudiovisualequipment-Digitalaudioparts-Basicmeasurementmethodsofaudiocharacteristics-General
【原文标准名称】:音频和视听设备.数字音频部分.音频特性的基本测量方法.总则
【标准号】:BSEN61606-1-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2010-01-31
【实施或试行日期】:2010-01-31
【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】:放大器;音频设备;音频信号;视听设备;视听资料;激光唱机;DAT数字式音响磁带装置;数据传送;定义;数字的;数字声频的;数字工程;数字信号;电气工程;跳动;测量;测量条件;测量技术;测量方法;噪声测量;特性;额定值;录音机;复制;信号传输;信号;放声;音频广播接收器;电视接收机;测试信号;测试;视频设备
【英文主题词】:Amplifiers;Audioappliances;Audiosignals;Audiovisualequipment;Audiovisualmaterials;CD-player;DAT;Datatransfer;Definitions;Digital;Digitalaudio;Digitalengineering;Digitalsignals;Electricalengineering;Jitter;Measurement;Measurementconditions;Measuringtechniques;Methodsformeasuring;Noisemeasurements;Properties;Ratings;Recorders;Reproductions;Signaltransmission;Signals;Soundreproduction;Sound-broadcastingreceivers;Televisionreceivers;Testsignals;Testing;Videoequipment
【摘要】:ThispartofIEC61606isapplicabletothebasicmethodsofmeasurementoftheaudiocharacteristicsofthedigitalaudiopartofaudioandaudiovisualequipmentforallofconsumeruse,professionaluseandpersonalcomputer.Thecommonmeasuringconditionsandmethods,describedinthisstandard,areusedforthemeasurementoftheperformancecharacteristicsofequipmenthavinganaudiobandwidthequaltoapproximatelyone-halfofthesamplingfrequencyofasystem,wheretheaudioinformationisprocessedintheformofdigitaldata.CDplayers,DATrecorders,digitalamplifiers,digitalsoundbroadcastreceiversandtelevisionbroadcastreceiverswithdigitalsoundareexamples.Thisstandarddescribestestmethodsforequipmentwhichhasdigitalinputwithanalogueoutputandanalogueinputwithdigitaloutput.Futurerevisionsofthisstandardwillcoverdigital-in/digital-outandanalogue-in/analogue-outtests.Thisstandarddoesnotapplytoalossycompressionsignalandalsodoesnotapplytopoweramplifiers.NOTE1AdigitalaudiosystemhavingananalogueinputandananalogueoutputwithdigitalsignalprocessingmayhavedifferentcharacteristicsfromthoseofapureanalogueaudiosystemduetosamplingoftheaudiosignalandperformanceofincorporatedA/DandD/Aconverters.MeasurementmethodsdescribedinIEC60268-3maynotgivecorrectresultswhenappliedtoadigitalsystem.NOTE2Themethodsdescribedaremostlybasedonsamplingfrequenciesof32kHzandhigher.NOTE3Fortestsofthosesystemsofdigital-in–digital-out,andanalogue-in–analogue-outtests,refertoAES17.NOTE4ThisstandardisplannedtoharmonizewiththefirsteditionofIEC61606(1997)1,AES17andEIAJCP-2i50.
【中国标准分类号】:M72
【国际标准分类号】:33_160_30
【页数】:34P.;A4
【正文语种】:英语