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首页 无损音频格式介绍(Lossless audio format introduction)

无损音频格式介绍(Lossless audio format introduction).doc

无损音频格式介绍(Lossless audio format …

美人星星草
2018-11-03 0人阅读 举报 0 0 0 暂无简介

简介:本文档为《无损音频格式介绍(Lossless audio format introduction)doc》,可适用于社会民生领域

无损音频格式介绍(Losslessaudioformatintroduction)无损音频格式介绍(Losslessaudioformatintroduction)Atpresent,themostfamouslosslesscompressionformatsareAPE,FLAC,LPAC,WavPack,FLACVerymaturelosslesscompressionformat,FLACistheabbreviationofFreeLosslessAudioCodec,thesourceofthisformatiscompletelyopen,andcompatiblewithalmostalloperatingsystemplatformsItscodingalgorithmisquitematureandhaspassedrigoroustestsThisformatnotonlyhasmatureWindowsproductionprogram,butalsohasmanythirdpartysoftwaresupportInaddition,theformatisuniqueandhasbeenhardwaresupportedinlosslessformat,APE(Monkey'sAudio)APEisundoubtedlythemostfamouslosslesscompressionformat,andhasbeenwidelyusedinchinaItscompressionrateisexcellent,anditisefficientandfast,andthecomprehensiveabilityisdefinitelytheleaderofthedayAndthewidelyusedMonkey'sAudioauthoringsoftwarehasgreatlypromotedthepopularityofthisformatHowever,APEalsohasmanydisadvantages,anditsdecodingspeedisnotidealItcanonlybeusedontheWindowsplatform,andtheclosedsourcecodealsoaffectsitssupport,WavPackWavPackisnotjustalosslesscompressionformat,itcanalsobeusedasalossycompressionformatInitsunique"hybrid"mode,WavPackcanbecompressedintoWVfiles,lossycompressionformat,thesizeequivalenttoaboutoftheWAVfileWVCcorrectionfile,thesizeisgenerallyequivalenttoaboutoftheportfolioWAVportfolioWiththecorrespondingWVCfile,theWVfileinthelossycompressionformatbecomeslossless,playingexactlythesameastheplainlosslesscompressionformatIfinordertoreducethefilesize,youcanremovetheWVCfile,theWVfilebecomeslossyformat,playingandhighbitrateMPexactlythesame!WavPackalsoincorporateslosslessformatsandlossyformats,LPACInthecentralrailofthelosslessformoftheindex,theindicatorsarerelativelyaverageTheauthor,TilmanLiebchen,hasalsobeenupdatingitandhasproducedgoodprogrammingforit,WMALosslessMicrosoftalsobegantoprovidelosslesscompressionafterWindowsMediaPlayerJustclickthemenu,tools,=options,andselecttheWindowsMediaAudioLosslessformatinthecopymusictabLater,throughWMP's"copyfromCD"function,youcansaveCDdirectlyintoWMALosslessformat,andit'sreallyconvenienttouseButinadditiontoWindowsMediaPlayer,therearefewothersoftwarethatcansupporttheformat,AppleLosslessThelatestversionoftheappleiTunesMusicsoftwarealsooffersAppleLosslesslosslesscompressionformatsLikeWindowsMediaPlayer,iTunescanrapidlytrackfromCDcompressedintoaAppleLosslessformatOfcourse,theformatisalsosupportedonlybyitsownsoftware,LaLaistheabbreviationofLosslessAudio,theformatisnotwellknown,butitisthecurrentcompressionratiochampion,compressionratenoonecandefeat,includingthehighcompressionratehasalwaysbeenknownfortheAPE!Becauseit'ssocompressed,it'sreallyslowenoughtodecodeanddecode,andthere'slesssoftwaretosupportitOnlytheWinampdecoderpluginandWindowsinterfaceencoderLosslessAudioCompressordevelopedbymyself,OptimFROGThecompressionratioofthisformatiscomparabletothatofLa,butitisslowerthanLa,ShortenCodingisveryfastlosslessformat,butcompressionrateisverydisappointing!Theformatisalsoopensource,supportingbothWindowsandMac,buthasnotbeenupdatedforalongtime,andhasbeenestimatedtohavediedandAALformatATRACAdvancedLosslessisaATRACformatdevelopedbySonyCorporATIonThecompressiontechniquecombinedwithATRACorATRACplusbehindtheaudioandthelatestlosslesscompressionalgorithm,inkeepingwiththetraditionalbroadcastequipmentcompatibilityatthesametime,realizethelosslesscompressionofdatawithverylowdatasizeperfectReferredtoasAALfiles,andnowtherearesomeHIMDproductscanbeupgradedtosupportAALfilesTheAALfileisdividedintotwosections,oneistheKofAplus,theotherisAorA,andtheotheristhedetailinformationofthemusic,sofortheordinarySONYWoklman,onlythepartofKisreplayedOtherdetailscanbeplayedonlyiftheAALisreallysupported,KenwoodLosslessKenwoodoriginallosslesscompressionmode(KenwoodLossless)torecordhighqualitymusicCDcontent,itcanmoreeffectivelyusetheharddiskmemorytostoremoredata(theaveragecompressionrateof),butalsocaneffectivelyberestoredtotheoriginalstatearchives,whichcanensurehighqualitysound,TTATTAisusedforlosslesscompressionofmultichannel,,bits,integer,andbitsIEEEfloatingpointaudioWAVformatsThesizeofthecompressionrangeistooftheoriginalfilesizeThemaingoaloftheTTAformatisnottomaximizethecompressionratio,butrathertooptimizetheencodingalgorithmforhardwareexecution,whilesupportingboththeIDvandIDvtwotaginformation

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