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1、Unit7Audio&SpeechLesson19HighFidelityAudio电子信息工程专业英语教程任治刚主编电子工业出版社2024/9/20电子信息工程专业英语教程2Lesson19HighFidelityAudioBackgroundsTexttourLanguageinuseVocabularyStructureReading/writingtechniques2024/9/20电子信息工程专业英语教程3TerminologyAudiophile高保真音响爱好者Hearing听力，听觉Microscope显微镜Phonograph留声机Backgrounds2024/9/20电子
2、信息工程专业英语教程4TerminologyRpm:revolutionsperminute转数分scanningvelocity扫描速度Playback录音重放featuresize特征尺寸Backgrounds2024/9/20电子信息工程专业英语教程5Terminologyblockdiagram框图look-uptable查找表Reed-Solomoncoding里德-索罗蒙编码Backgrounds2024/9/20电子信息工程专业英语教程6TerminologyBesselfilter贝塞耳滤波器sin(x)/xcorrectionsin(x)/x校正Backgrounds2024
3、/9/20电子信息工程专业英语教程7TexttourOutlineIntroduction(para.1)CDplaybacksystem(para.2-8)Stereo(para.9,10)2024/9/20电子信息工程专业英语教程8IntroductionDigitalaudiowasbroughttotheworldbythecompactlaserdisc,orCD.Thiswasarevolutioninmusic;thesoundqualityoftheCDsystemfarexceedsoldersystems,suchasrecordsandtapes.2024/9/20电子信
4、息工程专业英语教程9CDplaybacksystemthesurfaceofacompactlaserdiscthedigitalinformationstoredasaseriesofdarkpitsburnedonthesurfacewithalaserDuringplayback,anopticalsensordetectsifthesurfaceisreflectiveornonreflective,generatingthecorrespondingbinaryinformation.2024/9/20电子信息工程专业英语教程10CDplaybacksystemEFMtwo-leve
5、lReed-Solomoncodingmultiratetechnique2024/9/20电子信息工程专业英语教程11CDplaybacksystemFigure7.1Thesurfaceofacompactdisc2024/9/20电子信息工程专业英语教程12CDplaybacksystemFigure7.2TheblockdiagramofatypicalCDplaybacksystem2024/9/20电子信息工程专业英语教程13StereoAudiosystemswithmorethanonechannelaresaidtobeinstereoThefourchannelsoundu
6、sedinmotionpicturesiscalledDolbyStereo,withthehomeversioncalledDolbySurroundProLogic.2024/9/20电子信息工程专业英语教程14StereoFigure7.3Two-channelDolbyStereo(left)and5.1-channelDolbyProLogicII(right)2024/9/20电子信息工程专业英语教程15VocabularyFeaturecomplyartificialreproducesecondaryStructureReading/writingtechniquesLangu
7、ageinuse2024/9/20电子信息工程专业英语教程16Vocabulary2024/9/20电子信息工程专业英语教程17FeatureindictionaryAnyofthedistinctpartsoftheface,astheeyes,nose,ormouth.面貌特征Aprominentordistinctiveaspect,quality,orcharacteristic特征afeatureofonespersonality;afeatureofthelandscape.Themainfilmpresentationatatheater.正片Aspecialattraction
8、atanentertainment.特别节目Aprominentorspecialarticle,story,ordepartmentinanewspaperorperiodical.特写Anitemadvertisedorofferedasparticularlyattractiveorasaninducement特色awashingmachinewithmanyfeatures.2024/9/20电子信息工程专业英语教程18FeatureindictionaryTogivespecialattentionto;display,publicize,ormakeprominent.展示Toha
9、veorincludeasaprominentpartorcharacteristic:由主演Theplayfeaturedtwowell-knownactors.Todepictoroutlinethefeaturesof.刻画2024/9/20电子信息工程专业英语教程19FeatureintextAsshownbythegeometryinFig.7.1,theCDstoresabout1bitper(m)2,correspondingto1millionbitsper(mm)2,and15billionbitsperdisk.Thisisaboutthesamefeaturesizeus
10、edinintegratedcircuitmanufacturing,andforagoodreason.从图7-1显示的几何尺寸可以看出，CD每平方微米存储1位信息（相当于每平方毫米1百万位），共存储1.5亿位信息。这个尺寸（1平方微米）和集成电路制造中的特征尺寸大致是相同的。2024/9/20电子信息工程专业英语教程20Featureinuseacousticfeature声学特征agefeature年龄特征designfeature设计特点2024/9/20电子信息工程专业英语教程21ComplyindictionaryToactinaccordancewithanotherscomma
11、nd,request,rule,orwish:遵从Thepatientcompliedwiththephysiciansorders.2024/9/20电子信息工程专业英语教程22ComplyintextThishastheadvantageofreducingtheerrorrateduetotheopticalpickup,buthowdoyouforcethebinarydatatocomplywiththisstrangebunching?这样做的好处是降低了光学读取造成的错误率。但是，如何让二进制数值遵循这种奇怪的安排？2024/9/20电子信息工程专业英语教程23Artificia
12、lindictionaryMadebyhumanbeings;producedratherthannatural.人工的Broughtaboutorcausedbysociopoliticalorotherhuman-generatedforcesorinfluences:人为的anartificialeconomicboom.Madeinimitationofsomethingnatural;simulated.模拟的Notgenuineornatural:假的anartificialsmile.2024/9/20电子信息工程专业英语教程24ArtificialintextMusicplay
13、edthroughamonaural(onechannel)systemoftensoundsartificialandbland.Incomparison,agoodstereoreproductionmakesthelistenerfeelasifthemusiciansareonlyafewfeetaway.单声道系统播放出来的音乐往往听上去生硬而又平淡。相比之下，一个好的立体声音响系统会使听者感到似乎演奏家们只有几步之遥。2024/9/20电子信息工程专业英语教程25ReproduceindictionaryToproduceacounterpart,animage,oracopyof
14、.复制Togenerate(offspring)bysexualorasexualmeans.生殖Toproduceagainoranew;re-create.再生产Tobring(amemory,forexample)tomindagain.重现2024/9/20电子信息工程专业英语教程26ReproduceintextRatherthanjustmatchingtheabilitiesofthehumanear,thesesystemsaredesignedtoexceedthelimitsofhearing.Itstheonlywaytobesurethatthereproducedmu
15、sicispristine.这些系统不是设计得刚好满足人类的听觉需求，而是超越了人类听觉的极限。这是唯一能够确保再现音乐无任何失真的方法。2024/9/20电子信息工程专业英语教程27Reproduceinuseaccuratecolourreproduction精确彩色重现datareproduction数据复制frequencyreproduction频率再生hi-fireproduction高保真重放imagereproduction图象再现multichannelreproduction多声道放音signalreproduction信号再生2024/9/20电子信息工程专业英语教程28
16、SecondaryindictionaryOfthesecondrank;notprimary.第二的；不是主要的Inferior.低等的Minor;lesser.不重要的；次要的Derivedfromwhatisprimaryororiginal:间接的asecondarysource;asecondaryinfection.2024/9/20电子信息工程专业英语教程29SecondaryindictionaryHavinganinducedcurrentthatisgeneratedbyaninductivelycoupledprimary.Usedofacircuitorcoil.产生感
17、应电流的Oforrelatingtoasecondaryschool:中学的secondaryeducation.2024/9/20电子信息工程专业英语教程30SecondaryintextAudiophilesdemandtheutmostsoundquality,andallotherfactorsaretreatedassecondary.高保真音响爱好者对声音质量要求极高，而把除此以外所有其他因素都视作第二位。2024/9/20电子信息工程专业英语教程31Secondaryinusesecondaryeducation中等教育secondaryproduct副产品asecondarycause次要原因secondaryinfection继发感染2024/9/20电子信息工程专业英语教程32Structure2024/9/20电子信息工程专业英语教程33Reading/Writingtechniques
