Multimediamateriaalia

Tyyppi

Kuvan luomiseksi tarvitset tietyn asteen sommittelu- ja väritaitoja.Elämyksen tekeminen edellyttää taiteen perustaa,ja videon ja äänen tuotantotaivaatii ammatillisia tietoja ja taitoja.

Multimediamateriaalien tyypit

Yleensä levylle tallennettujen materiaalien eri tiedostomuotojen mukaan materiaalit voidaan jakaa tekstiksi, ääneksi, kuvaksi, animaatioksi, videoksi jne.

Multimediamateriallibrarycanmanagestreamingmedia,FLASHanimation,documents,picturesandothermultimediaformatfiles,amongwhichstreamingmediaincludesavi,wav,mpeg,rmandothersounds,Imagefiles,teacherscansubmitvariousmultimediamaterialstotheserverthroughIE,andfillinthetypes,attributesandbriefdescriptionsofthematerialssubmitted.Thesecontentswillplayanimportantroleinfuturematerialsearches.Afterthematerialsaresubmitted,theywillbereviewedbytheadministrator,andthematerialsthathavepassedthereviewwillbepublishedtothemultimediamateriallibraryforeveryonetoretrieveanddownload.Theusercansearchforthematerial'skeywords,nameandmaterialprofileinfulltexttosearchfortherequiredmaterial.

Teksti

Äärimmäiset kirjaimet, numerot ja symbolit.Muuhun mediaan verrattuna teksti on helpoin käsitellä, vie vähiten tallennustilaa ja on kätevintä tietokoneen syöttämiseen ja tallentamiseen.media.Tekstinäyttö on erittäin tärkeä ohjelmisto,ohjelmistonmääritelmä,ohjelmiston osa. periaatteet, ongelmalausekkeet, otsikot, valikot, painikkeet, navigointi jne. ovat todella erotettavissa tekstitiedoista .Se ontärkeä mediaelementtiopetustiedon levittämiseksi tarkasti ja tehokkaasti.Teksti on yleisesti käytetty mediaelementti.

Tiedostomuoto ja ominaisuudet:

.TXT:TXT-teksti on selvätekstitiedosto ja formatoimaton, eli siinä ei ole relevanttia fonttia, kokoa, muotoilutietoja, kuten väriä ja sijaintia. Windows-järjestelmän "Muistilehtiö"onmuokkaus- ja tallennustyökalu, joka tukee TXT-tekstiä.Kaikki ohjelmistonmuokkaustyökalut eivät voi suoraanmuodostaa tTX-tekstiä. ylivoimainen,

.DOC:DOCisafileformatusedbyWordwordprocessingsoftware.

.WPS:WPSon kiinalaisen tekstinkäsittelyohjelmiston muoto, joka sisältää ainutlaatuisia rivinvaihto- ja tyyppiasetustietoja. Niitä kutsutaan muotoilluksi tekstiksi ja niitä voidaan muokata vain tietyissä WPS-muokkausohjelmistoissa. Käytetään.

.RTF:Kuvaitse sisältöselkotekstiä,joka voivoida erimuotoisia tietoja,ja voidaanluoda kirjallisesti,Word jne.Tunnetaan myös nimellä RichTextFormat(RichTextFormat,yleensäviitattutoasRTF)onsoftwaremodel-tai documentointialustaa. voi lukea ja tallentaa RTF-asiakirjoja.

Graphics

Thegraphicsinthecomputeraredigitalandvectorgraphics.Vectorgraphicsaredescribedbyasetofinstructions.Theseinstructionsdescribeallthestraightlines,Theposition,dimension,sizeandshapeofcircles,arcs,rectangles,curves,etc.Whendisplaying,specialsoftwareisrequiredtoreadtheseinstructionsandconvertthemintotheshapeandcolordisplayedonthescreen.ThevectordiagramisgeneratedusingacomputerdrawingprogramcalledDraw.Vectorgraphicsaremainlyusedforlineardrawings,artisticcharacters,engineeringdrawings,etc.

Tiedostomuoto ja ominaisuudet:

.WMFWindows-metatiedostomuoto.

.JPGYleisesti käytetty kuvatiedostomuoto.

PNG-flashissa käytettyä kuvien muotoapehmennetään.

.GIF-verkkosivuilla usein käytetty muoto.

.EMFWindowsenhancedmetafileformat.

.TIFon yleisesti käytetty metatiedostomuoto painoteollisuudessa.

.PSDphotoshopedi metatiedoston.

.CDRCorelDRAWtuotettuja luotu.CDR-tiedostot.

.EPS-tiedostomuotoproducedby.EPSillustrator.

Image

Theimagementionedherereferstoabitmap,whichiscomposedofasetofdigitsthatdescribetheintensityandcolorofeachpixelintheimage.Bitmapimagesaresuitableforimagesthataremoredetailed,richinlevelsandcolors,andcontainalotofdetails.Therearemanywaystogenerateabitmapimage.Themostcommonlyusedistodrawwithasoftwaretoolfordrawing,anddraweachpixelwithaspecifiedcolortogenerateagraphic.

Tiedostomuoto ja ominaisuudet:

.BMPBMP(abbreviationofBitmap)imagefileisaformatsupportedbyalmostallgraphicssoftwareunderWindowsenvironment.Thiskindofimagefilestoreseachpixelinthedigitalimagecorrespondingly.Generally,nocompressionmethodisused.Therefore,imagefilesinBMPformatarerelativelylarge,especiallytruecolorswith24-bitcolordepth(2tothe24thpower).Theimageisevenmoreso.Duetothenon-compressioncharacteristicsofBMPimagefiles,intheproductionofmultimediaprograms,BMPformatimagefilesareusuallynotuseddirectly,butusedintheintermediateprocessofimageeditingandprocessingtosavethemostrealimageeffects,andconvertthemtootherimagesafterediting.Fileformat,andthenappliedtotheproductionofmultimediaprojects.

.GIFPNG(PortableNetworkGraphics)imagefileformatprovidestransparencyandinterlacingeffectssimilartoGIFfiles.Itsupportstheuseof24-bitcolors,andthecolorindexfunctionofthepalettecanalsobeused.ItcanbesaidthatthePNGformatimagecombinestheadvantagesofthemostcommonlyusedimagefileformats(suchasGIF,JPEG),anditusesalosslesscompressionalgorithmtoretaineverypixelintheoriginalimage.

.JPGJPEGimagefileformatusesamoreadvancedcompressionalgorithm.Thisalgorithmcanmaintainbetterimagefidelityandhighercompressionratiowhencompressingdigitalimages.Thebiggestfeatureofthisformatisthatthefileisverysmall.UserscanchoosethecompressionratioofJPEGfilesaccordingtotheirneeds.Whenthecompressionratiois16:1,thecompressedimageeffectisalmostindistinguishablefromtheoriginalimage;whenthecompressionratioreaches48:At1o'clock,agoodimageeffectcanstillbemaintained,andalessobviousdistortioncanbeseenbycarefullyobservingtheedgeoftheimage.BecauseJPEGimageshaveahighcompressionratio,theyareverysuitableforsituationswherealargenumberofimagesaretobeprocessed.

Animationisatechnologythatgeneratesmotionpicturesthroughaseriesofindividualpicturesthataredifferentfromeachother.Throughacertainspeedofplayback,theeffectofcontinuouschangesintheimageinthepicturecanbeachieved.Torealizeanimation,itfirstneedsaseriesofgraphicsorimageswithslightdifferencesbeforeandafter.Eachpictureiscalledaframeofanimation,whichcanbegeneratedandrecordedbyacomputer.Aslongastheseframesareprojectedatacertainspeed,ananimationcanbeobtained,whichiscalledaframe-by-frameanimation.

Inteaching,itisoftennecessarytouseanimationtosimulatethechangingprocessofthingstoillustratescientificprinciples,especiallytwo-dimensionalanimation,whichisoftenusedinteaching.Inmanyfields,theuseofcomputeranimationtoexpressthingsisevenbetterthanmovies.Therefore,morecompletemultimediateachingsoftwareshouldbeequippedwithanimationtoenhancetheteachingeffect.

Tiedostomuoto ja ominaisuudet

.FLAFlashLähdetiedostojen tallennusmuoto.Flashissasuuri määrä grafiikkaa on vektorigrafiikkaa. Siksi lähentämisen ja loitontamisen toiminnassa ei ole vääristymiä,ja animaatiotiedostojen määrä on pieni.Flash5-animaatioeditointiohjelmistoonkätevä,tehokas.

.SWFFlashAnimaatiotiedostomuoto.

.GIFGIF-muoto on yleinen kaksiulotteinen alanimaatiomuoto.

.AVIStrictlyspeaking,theAVIformatisnotananimationformat,butavideoformat.Itcontainsnotonlypictureinformation,butalsosoundeffects.Becauseitcontainssoundsynchronizationissues,thisformatismostlybasedontimeastheplaybackunit,sotheplaybackspeedcannotbecontrolledduringplayback.

Ääni

Ääni sisältää yleensä kolme muotoa: ääni, ääniefektit ja musiikki. Ääni viittaa ihmisten puheen ääneen; ääniefektit viittaavat erityisiin ääniefekteihin, kuten sateeseen, soittoääniin, koneääniin, eläinten ääniin jne. yleisimmistä äänimuodoista.

Inmultimediateachingsoftware,languageexplanationandbackgroundmusicareimportantpartsofmultimediateachingsoftware.Themostcommonthreetypesofsoundsarewaveformsounds,MIDIandCDmusic,andwaveformsoundsarethemostcommonlyusedinmultimediateachingsoftware.

Tiedostomuoto ja ominaisuudet

.WAVwavesoundfileformat,wavesound,itisgeneratedbysamplingthesound.Thousandsofindependentdigitalgroupsformedafteranalog-to-digitalconversionarestoredinthesoftware.Thedigitaldatarepresentstheinstantaneousamplitudeofthesoundatdiscretepointsintime.

.MIDMIDIsoundfileformat,MIDI(MusicalInstrumentDigitalInterface)isacommunicationstandardbetweenelectronicmusicequipmentandcomputers.MIDIdataisnotsound,butinstructionsstoredinnumericalform.AMIDIfileisaseriesofcommandstringswithtimecharacteristics.Inessence,itisarecordingofmusicalbehaviors.WhentherecordedMIDIfileistransferredtotheMIDIplaybackdevice,thesoundisformed.MIDIdataisdevicedependent,andthesoundproducedbyMIDImusicfilesdependsontheMIDIdeviceusedforplayback.

.MP3MP3isanaudiofileformatcompressedandencodedbytheMPEGLayer3standard.MPEGencodinghasaveryhighcompressionrate.Wecanknowbycalculationthataone-minuteCDsoundquality(44100Hz,16Bit,2Stereo,60Second)WAVfileneedsabout10megabytesifuncompressedStoragespace.ThecompressionratioofMPEGLayer3isashighas1:12.Inthepast,about1minuteofCDmusicwascompressedandencodedintheMLPEGLayer3format,itcouldbecompressedtoacapacityofabout1megabyte,anditstimbreandsoundqualitycouldremainbasicallycompletewithoutdistortion.

Video

Video(Video),likeanimation,consistsofcontinuouspictures,exceptthatthepicturesaredynamicimagesofnaturalscenery.Videoisgenerallydividedintoanalogvideoanddigitalvideo.TVandvideotapeareanalogvideoinformation.Whentheimageisplayedataspeedofmorethan24framespersecond,duetothepersistenceofthehumaneye,whatweseeisacontinuousvideo.Thevideointhemultimediamaterialreferstothedigitizedmovingimage.VCDdiscsstoredigitalvideoinformationgeneratedbyquantizedsamplingandcompression.Thevideosignalacquisitioncardisadevicethatcompressesanalogvideosignalsintodigitalvideoduringtheconversionprocessandstorestheminthecomputerharddiskintheformoffiles.Afterconnectingthevideoandaudioinputterminalofthevideocapturecardwiththevideoandaudiosignaloutputterminal(suchasacamera,avideorecorder,aDVDplayer,etc.),thecapturedvideoimageandaudioinformationcanbecollected.

Avideofileisamultimediafilecomposedofasetofcontinuouslyplayeddigitalimages(Video)andasectionofdigitalaccompanyingaudioplayedsimultaneouslywiththecontinuousimages.Eachoftheimagesiscalledaframe,andthedigitalaudiothatisplayedsimultaneouslywiththevideoisreferredtoas"accompanyingaudio"forshort.

Tiedostomuoto ja ominaisuudet

.AVIAVI(AudioVideoInterleave)onvideotiedostomuoto, jonka Microsoft on kehittänyt äänen ja videon ristiintallennusta varten. AVI-tiedostoissa, ääni- ja videodataa limitetään ja tallennetaan, ja jatkuvaa tietoa voidaan saada toiston aikana. ympäristöön.

.VOBDVDvideotiedostojen tallennusmuoto.

.DATVCDvideotiedostojen tallennusmuoto.

.wmvMpegencodedvideotiedostot.

.MPEG on sama kuin yllä.

.RMreal-timesound(todellinen ääni)ja reaaliaikainen video(realvideo) ovat multimediatekniikoita, jotka on kehitetty tietokoneverkkosovelluksissa. Se voi tarjota käyttäjille reaaliaikaista ääntä ja videotehosteita. ,joka jakaa tiedoston useisiin pieniin osiinladattavaksi kuin tehtaalla.Käyttäjät nauttivat videoista verkkosivuilla käyttämällä tätä tekniikkaa, ja voivat käyttää RealPlayeria kuunnellakseen tai katsoakseen niitä ladatessaan sen sijaan, että he odottaisivat, että koko tiedosto ladataan, ennen kuin kuunneltiin mediaa tai todellista mediaa. tiedostojen suoratoistomuotoja ja niiden laajennus on.RM,.RAtai.RAM.Multimediaverkkosivujen tuotannossa siitä on tullut tärkeä multimediatiedostomuoto.Jos haluat käyttää "suoratoistotekniikkaa"kuten todellisia tiedostoja verkkosivuilla,ei vain selaimen tuki, jota tarvitsemme suoratoistopalveluille.

.MOVMOVisafileformatintroducedbyAppletoapplyvideoonMacintoshcomputers.Atthesametime,ApplealsolaunchedtheQuickTimesoftwaredesignedforMOVvideofileformatapplications.ThissoftwarehastwoversionsusedonMacintoshandPC.Therefore,MOVvideofileformatcanalsobeusedonmultimediaPCs.TheQuickTimesoftwareandMOVvideofileformathavebeenverymatureandhaveawiderangeofapplications.

Collectionandproduction

Basicoverviewofcollection

Thecollectionandproductionofmultimediamaterialsinvolvesmanyequipment,interfaces,mediaandfileformats,whichtakesalongtime.Itisaveryheavyandmeticulouswork.Forsomesimplematerials,suchasrelativelysimplegeometricfigures,youcangenerallyusethegraphicstoolsthatcomewiththemultimediacoursewaretodraw(forexample,youcandrawsimplegraphicsandcommongraphicsbyusingthegraphicstoolsinPowerpointandthebasicgraphicsintheself-selectedgraphicslibrary);therearemanyThematerialscanbefoundinotherplaces(suchasfinishedcourseware,materialCD-ROM,VCD,online,etc.)andcanbeused.Forteachers,thisisanidealshortcut,whichnotonlysavestheirtime,butalsoshortensCoursewareproductioncycle,andyoudon’tneedtoinvestinexpensiveequipment;somematerialsyouneedmustbeproducedbyyourself,whichrequiresmasteringtheuseofsomecommonlyusedtoolsandsoftwareandtheoperationofmultimediaequipment.

Principlesofcollection

1.PrinciplesofauthenticityandscientificityWhenusingmultimediamaterials,payattentiontotheauthenticityandscientificityofthecontent.Theselectionofmaterialshasverystrictrequirementsforauthenticity.Scienceitselfistruth-seekingandaccurate.Itopposesfalsification.Ifitlosesitsauthenticity,itlosesitsscientificity.Multimediateachingsoftwaremustaccuratelyexpresstheknowledgeofthesubject.Therefore,theselectionofmaterialsmustbestrictlycheckedtoensurethecorrectnessofthesubjectcontent.Itmustnotviolatescientificprinciples.Itmustbeaccurateinexplanation,rigorousinexpression,reliableindata,informative,andstandardizedinoperationandperformance.Theselectionofmaterialsmustconformtoobjectiverealityandcanwithstandpracticaltests.Online"grass"materialscannotbeselected.

Second,theprincipleofsystemicitySystemicityisthemainfeatureofareasonableknowledgestructuresystem.Thesystematicprinciplerequiresthattheselectionofmaterialshelpstoformknowledge,skillsandskillssystematically,continuously,andinacertainlogicalsequence.Thesystemicityofteachingcontentismainlyreflectedintheintegrityofsubjectcontentandtheintegrityofknowledge,ratherthanfragmentaryandincompleteknowledge.Secondly,systemicityisalsoreflectedintakingteachingasawholesystem,usingelementanalysismethodstodecomposeitintoindividualelements,furtherdecomposingeachelementintosub-elements,andcombiningtheminanorderlymannertomakeeachknowledgepointorderlyOrderlyandcloselyrelated.

Commonlyusedsoftware

Theformatisrelatedtothecompressionalgorithmused,andthesoftwareopenedandproducedisalsorelatedtothecompressionalgorithm.Herearesometypicalsoftwareformakingmultimediamaterials.

Tekstiohjelmistot

Windows Notepad, Word, WPS, Excel, COOL3D jne.

Imagesoftware

Windowsdrawing,ACDSee,CoreDraw,Photoshop,Ilotulitus,conew,CDR jne.

Ääniohjelmisto

Windows Recorder, CoolEdit, Winamp, herosupersolution jne.

Animaatioohjelmisto

GifAnimator, Flash, Director, 3DMAX jne.

Video-ohjelmisto

WindowsMediaPlayer, SuperJieba, Premiere, VideoStudio jne.

Historyofdevelopment

TheemergenceofmultimediatechnologymustbeamatteroftheX86era.Ifyoureallywanttoconfirmthetimeforthefulldevelopmentofmultimediatechnologyfromthehardware,itshouldbeexactlyAfterthefirstsoundcardappearedonthePC.Thegraphicscardhadalreadyappearedbeforetherewasnosoundcard,atleastthedisplaychiphadalreadyappeared.Theappearanceofthedisplaychipnaturallyindicatesthatcomputershavebeguntoprocessimages,butthisdoesnotmeanthatcomputersatthattimecandevelopmultimediatechnology.Theappearanceofsoundcardsinthe1980snotonlymarkedthecomputer'sabilitytoprocessaudio,butalsomarkedthedevelopmentofcomputers.Finallybegantoenterabrand-newstage:thestageofmultimediatechnologydevelopment.TheestablishmentofMPEG(MovingPictureExpertGroup)in1988contributedtothedevelopmentofmultimediatechnology.Enteringthe1990s,withtheimprovementofhardwaretechnology,sincethe80486,themultimediaerahasfinallyarrived.

Sincethe1980s,thespeedofmultimediatechnologydevelopmenthasbeenamazing.However,nomatterhowcomplicatedthetechnologyisandhowchaoticthedevelopment,thereseemtobetwomainlinestofollow:oneisthedevelopmentofvideotechnology,andtheotheristhedevelopmentofaudiotechnology.SincetheemergenceofAVI,videotechnologyhasenteredaperiodofvigorousdevelopment.ThethreemajorclimaxesduringthisperiodwereAVI,Stream(streamformat)andMPEG.TheemergenceofAVIistantamounttolayingastandardforcomputervideostorage,whileStreammakesitveryeasytobroadcastvideoontheInternet,andMPEGmaximizesthepopularizationofcomputervideoapplications.Thedevelopmentofaudiotechnologyhasroughlygonethroughtwostages,oneisWAVandMIDI,whicharemainlystand-alonedevices,andtheotheristhedevelopmentofvariousnetworkmusiccompressiontechnologiesthatappearsubsequently.

PC-kaiuttimista innovatiivisiin äänikortteihin.

1.Videoneuvottelujärjestelmä

Thebreakthroughofmultimediatechnology,thematurityofwideareanetworkandthesupportofdesktopoperatingsystemmakevideoconferencingsystemanewhotspotformultimediatechnologyapplications.Itisanimportantmultimediacommunicationsystemthatintegratestheinteractivityofcomputers,thedistributionofcommunications,andtheauthenticityoftelevision.

2.Virtuaalitodellisuus

Virtualrealityisanedgetechnologycloselyrelatedtomultimediatechnology.Itintegratescomputerimageprocessing,simulationandsimulation,sensortechnology,anddisplaysystem.Technologyandequipment,intheformofsimulation,provideuserswithathree-dimensionalimageenvironmentthattrulyreflectsthechangesandinteractionsofoperatingobjects,therebyformingavirtualworld,andprovidinguserswithavirtualworldthroughspecialequipment(suchashelmetsanddatagloves).Thisvirtualworldinteractswithathree-dimensionalinteractiveuserinterface.

3. Hyperteksti (Hyperteksti)

Hypertextisatextprocessingtechnologydevelopedwiththedevelopmentofmultimediacomputers.Atthesametime,apowerfulmeansofcomprehensivelyexpressinginformationisaneffectivetoolformultimediaapplications.

4.Kotiaudiovisuaalinen

Actually,themostvisibleapplicationofmultimediaistheintroductionofdigitalmusicandvideointothehome.Becausedigitalmultimediahastheadvantagesofconvenienttransmissionandstorageandhighfidelity,itiswidelyfavoredbypersonalcomputerusers,andalargenumberofspecializeddigitalaudio-visualproductshavealsoenteredthehome,suchasCD,VCD,DVDandotherequipment.

Materiaalimuoto

Esittely

Käytännössä tapahtuu usein niin, että kuvien, äänen, animaation ja videon tallennusmuodon väärän valinnan vuoksi multimediakurssiohjelma vie paljon tilaa ja laatua.

Undernormalcircumstances,thelargerthestoragespaceinthecomputer,thebetterthequalityofmaterialsofthesametypeandthesamecontentbutindifferentformats,butthiswilldirectlyleadtolargecourseware,difficulttotransmit,andwasteofsystemresources.Therefore,whenchoosingmaterials,besuretochoosefilesofmoderatequalityandformat.

Kurssiohjelmiston säännöllinen käyttö

Kuvamateriaali:Jos kuvat ovat mukana kurssiohjelmiston tuotannossa, JPG-muotoa käytetään yleisesti ja kokoa hallitaan 100–200 kt:n välillä;

ÄäniMateriaali:Käytä yleensä WMA- tai MP3-muotoisia äänitiedostoja, ja virtausnopeutta säädetään välillä 16–128 Kb/s.

Animationmaterial:generallyuseGIFandSWFformatanimationfiles,theformerissuitableforsmallcartoonanimation,thesizeiscontrolledwithin100K,thelatterissuitableforvarioustypesofanimation,interactiveIthasstrongperformance,smoothplayback,andthesizeisgenerallycontrolledwithin10M.

Videomateriaali:Videotiedostot WMV-muodoissa, joita käytetään usein, ja virtausta ohjataan noin 250 kt/s.

Multimediatechnologyisacomputercomprehensivelyprocessinggraphics,images,text,audioandvideoandotherinformationanditsstorageandtransmissiontechnology.Itcanbedividedintotwoparts:multimediahardwaretechnologyandsoftwaretechnology.Thewidespreaduseofcomputershasprovideduswithawealthofimages,musicmaterialsandproductionmethods.Makemultimediaintotheclassroomareality,andallthiscanbedoneeasilywithamultimediacomputer,avideographicscapturecard,somesoftwarewithcapturefunction,adigitalcamera,ascannerandarecorder.Theapplicationofmultimediaenablesstudentstoappreciatemoreandmorebeautifulobjectsintheteachingprocess,andprovidesareliablematerialbasisfortheimprovementoftheiraestheticqualityandthinkingability.

Hankinta

Multimediakurssiohjelmamateriaalit voidaan jakaa karkeasti useisiin tietoihin, kuten tekstiin, grafiikkaan, kuviin, audioon (ääneen), videoon ja animaatioon.

Tekstimateriaali

Tekstimateriaalivarmuus, joka tallennetaan automaattisesti tiedostotekstinä. Yhteiset muodot:txt-tiedosto, asiakirjatiedosto, rtffile, wps-tiedosto, pdf-tiedosto jne.

Tiedoston syöttö yleensä käyttää näppäimistöä, ja kanavasyötetään myös käsin.

Yleensä tekstimateriaalit ovat peräisin oppikirjoista ja opituista materiaaleista, verkkosivustoilta jne.

Undernormalcircumstances,thetextcontentofawebpagecanbecopieddirectly,ordirectlysavedasawebpagefileoratextfile.

Specialfontsorartisticwordscanbecapturedwithacapturetoolandthenprocessedintopicturesbeforeuse.

Graafinen kuvamateriaali

Graafisen kuvamateriaalin muoto on yleensä:.jpg,.bmp,.gif,.tiff,.png jne.,

kuvakaappaus tai näytön kovakopio:

UsingHYPERSNAPorSnagitandotherscreencapturesoftware,youcancaptureanycontentdisplayedonthecurrentscreen.YoucanalsousetheALT+PRINTSCREENprovidedbyWindowstodirectlyputthepicturedisplayedinthecurrentactivewindowintotheclipboard;

Skannaussyöttö:

Thisisacommonlyusedimageacquisitionmethod.Ifwewanttoputsomeillustrationsintextbooksorotherbooksinmultimediacourseware,wecanscanandconverttheimagesintocomputerdigitalimagefilesthroughacolorscanner.Fortheseimagefiles,wealsoneedtousePhotoshoptoperformsomethingssuchascolor,brightness,andcontrast.,Sharpness,formatsize,etc.tomakeupforthedefectsleftduringscanning;

Digikameran käyttäminen:

Withthecontinuousdevelopmentofdigitalcameras,itissavedtoIntheinternalmemorychipofthecamera,thedataistransmittedtothemultimediacomputerthroughthecommunicationinterfaceofthecomputer,andthenprocessedinthecomputerusingsoftwaresuchasPhotoshopandisee,andthenappliedtothemultimediasoftwaremadebyus.Usingthismethod,youcaneasilyandquicklyproducedigitalimagesofactualobjectssuchastouristattractions,experimentalinstruments,people,etc.,andtheninsertthemintothemultimediacourseware;

Videoframecature:

UsingvideoplaybacksoftwaresuchasSuperJieba,Kingsoft,etc.,thevideoimagedisplayedonthescreencanbecapturedinasingleframeandstoredasastillimage.(LinktoHeroJiebascreenshotpage)Ifthecomputerhasanimagecapturecardinstalled,wecanuseittocaptureacertainframeofthevideoimagetoobtainadigitalimage.Thismethodisoftenusedwhenitisnecessarytotakeoutthevideoinothermultimediacourseware.Usedinourmultimediasoftware.Thismethodissimpleandflexible,buttheimagequalityproducedisgenerallydifficulttocomparewiththescanningquality;

CD-kokoelma:

Esimerkiksi erilaisia ​​kasvien kuvakirjastoja,eläinkuvakirjastoja,toimistotarvikekuvakirjastoja jne.CD-ROM-kuvat ovat teräväpiirtoisia ja hyvin tehtyjä,ja sama kuva on myös tallennettu useaan eri muotoon.Nämä CD-ROM-levyt voidaan ostaakirjakaupoista. brary;/p>

Verkkolataus tai verkkokuvakirjasto:

Thereareavarietyofveryrichresources,especiallyimageresources.Fortheimagesonthewebpage,wecandownloadandstoretheimagesonthewebpageinthelocalmachinebyplacingthemouseonthedesiredimageandpressingtherightbuttononthepop-upmenuandselecttheoptiontosavetheimage;Thewebsiteprovidesimagedownloadtoolssothatwecandirectlydownloadtheimagematerialsinthemateriallibrarytothelocalmachineforuse.

Käytä erikoisgrafiikkaa ja kuvanluontityökaluja:

Forthosegraphicsmaterialsthatwereallycannotgetthroughtheabovemethods,wehavetousedrawingsoftwaretocreatethem.CommonlyusedareFreeHand,Illustrator,Careldraw,etc.Thesesoftwareallprovidepowerfulgraphicsdrawingtools,coloringtools,specialeffectsfunctions(filters),etc.,andthesetoolscanbeusedtocreatetheimagesweneed.

Äänimateriaali

Kurssiohjelmiston ääni on yleensä taustamusiikkia ja efektimusiikkia, ja sen muoto on enimmäkseen WAV, SWA, MIDI, MP3, CD ja muita muotoja.

Thewaystoobtainaudioare:oneisthematerialCD;theotheristheresourcelibrary;thethirdistheonlinesearch;thefourthisfromCDandVCD;thefifthisfromtheexistingtapes;thesixthisfromthecoursewareGetin.

Therearemanywaystoprocessaudio.Herearesomepracticalmethodsofoperation:(1)Usetheaudiorecorderthatcomeswiththesystemtoeditsoundfiles;(2)UsethesupersolutionofthesupersolutionsoftwareAudiosolutiontyrantseditsoundfiles;(3)Useotheraudioconversionsoftwaretoeditsoundfiles.

Videomateriaali

Videomateriaalin muoto on yleensä:.wmv,.avi,.mpg,.rm,flv,rmvb,mpeg jne.

Theacquisitionofvideomaterialsismainlyfromresourcelibraries,e-books,coursewareandvideos,VCDs,DVDs,andvideofilescanalsobefoundontheInternet.Thevideomaterialsintheresourcelibraryande-bookscanbecalleddirectly,andthevideofilesinthecoursewarearegenerallyplacedoutsidetheexefile,andwillnotbepackagedwiththeexe,andcanalsobecalleddirectly.Thedatainthevideocanbecollectedwithacapturecard.Ifthereisnosuchdevice,itcanbeprocessedinaVCDproductionshop,andthevideodatacanbeconvertedintoMPGEformatorAVIformatandusedafterburning.VCDcanbedirectlyprocessedbySuperJieba,butitshouldbenotedthatDVDformat(MPGE4)cannotbeuseddirectlyinAuthorware.MPGE4conversionsoftwaremustbeinstalledtoconverttheformatbeforeitcanbeusednormally.

Inshort,thecollectionandprocessingofmaterialsrequiresmultiplesoftwareandmultipleforms.Thesoftwareandmethodsdonotnecessarilyhavetobeused.Itisnecessarytodecidehowtodealwithitaccordingtothespecificsituationandspecificenvironment,inordertoachievethebestresultswiththemosteconomicalandconvenientmethod.

Media

Themostimportantfeatureofmultimediateachingistotransformabstractpreachingintoimagepresentation.Theproductionofartcoursewaremuststartwiththeteachingmaterialitself,carefullyanalyzeandstudytheteachingmaterial,findoutthebreakthroughsandkeypointsanddifficultiesofteaching,andmakethecoursewareaccordingtotheactualneedsofteaching.Forexample,whenweareteachingthe"CompositioninPainting"lesson,iftheteachercanusemultimediatodesignacoursewarethatdemonstratesthedifferentvisualeffectsofthedrawnobjectindifferentpositionsanddifferentsizesonapainting,thentheteachingeffectwillbeItwillbeingreatcontrasttotheeffectofnocoursewaredemonstration.Theuseofmultimediateachingcoursewarecanvisualizesomeabstractthingssuchasthethinkingprocess,whichisconducivetothedevelopmentofstudents'thinking.Inaddition,intheteachingof"MyMangaPortrait",studentsarerequiredtounderstandthecomicprocessofcomicsandtheprocessoftransformingrealcharactersintocomics.Ifyoucancollectsomephotosofstudentsandyourselfbeforemakingthecourseware,andthenuseAdobePhot0ShopandPhotolmpacttoperformcolorhigh-contrast,stretching,anddeformationprocessing,anduse10-20photosfortheprocessofchangingthephotos(realcharacters)tocomics.Theimageswithslightlychangedimagesaredisplayed,sortedaccordingtotherequirementsoftheteachingandmadeatitle,andthenplayedunderthePhotoImpactAIbum.Duringteaching,studentsareallowedtoobservetherealimagegraduallytransitioningtocomics,withsomeanimationeffects,sothatchildrenwillbedeeplyattracted,theirenthusiasmwillbefullymobilized,andthepurposeofteachingwillberealizedinaverypleasantatmosphere.TeachingTheeffectisverygood.Onthecontrary,ifthetraditionalteachingmethodisadoptedinanotherclassofthesamegrade,thestudentshaveapoorgraspofknowledge.Theuseofmultimediateachingmethodsmakesiteasierforteacherstocreateabeautifulatmosphereandmakesstudentsinfectedbybeauty.Appreciationisanimportantmeansofaestheticeducationforstudents.Inadditiontospecialappreciationclassesinprimaryschoolarttextbooks,therearecontentforstudentstoappreciateintheteachingofeachlesson.IfyoucanusefilmandtelevisionworksrelatedtothecontentoftheworktomakeitintoavCDformatWithappropriatemusicandcommentary,itwilldeepenstudents’understandingofthework.Forexample,whenenjoyingthepaintingof"TheFiveHeroesofLangyaMountain",ifyoucanplaythemovieclipof"TheFiveHeroesofLangyaMountain"withcommentaryfirst,onthescreen,thefiveheroesresolutelyjumpafterfightingtheenemyuntiltheyrunoutofammunitionandfood.Downthecliff.Aftershowingthepaintings,studentswillbeabletounderstandthetragicandmajestyofthepaintingsandthegreatnessofthecharactersmoreeasily.Thescreensdisplayedonthecomputerareveryrich(morethan1.6millioncolors),withanimationeffects,storylines,andbeautifulmusic,sothatthestudents'learningenthusiasmwillbemobilizedtothegreatestextent.Makeartclasstrulyentertainingandeducatingpeoplethroughbeauty.Theseexamplestellusthatthebenefitsofcomputermultimediatechnologytoteachingareobvious.Thenourteachingconcepts,theguidingideologyofteachingdesign,theroleofteachers,etc.willhavetoundergomajorchanges.Weshouldpaymoreandmoreattentiontothemeaningconstructionofstudents'knowledgeofwhattheyhavelearned.Instructionaldesignshouldbetransformedfromknowledge-centeredtoresource-centeredandstudent-centered.Theentireteachingshouldbeopentoresources,learningknowledgeinasubjectYoucanacquireknowledgeofmanyothersubjects,andcompletethecultivationofvariousabilitiesbasedonthepossessionofabundantresources.Studentsshouldbecomethemainbodyoflearning,andteachersshouldbecometheinstructors,helpersandorganizersofstudents'learning.Accordingtotheorderofcultivatingstudents’abilitiesfromhightolow,itfocusesoncultivatingstudents’informationacquisitionandanalysisabilities,informationprocessingabilities,collaborationabilities,andexplorationandinnovationabilities.Theinformationsocietyneedsnewtalentswithinformationability,andinformationabilityreferstotheabilitytoacquire,analyzeandprocessinformation.Withtherapiddevelopmentofnetworktechnology,networkresourcescanbesaidtobevast,howtoquicklyandaccuratelyfindtheresourcesyouneedinthevastoceanofinformation,howtoquicklyjudgethevalueofresourcesandmakechoicesaboutthem,andhowtoreasonablyuseresourcesRecombinationfortheirownuseisrelatedtothesuccessorfailureofteachers'teaching.Theuseofmultimediainformationtechnologytoprovidearesourceenvironmentistobreakthroughthelimitationofbooksasthemainsourceofknowledge,andusevariousrelatedresourcestoenrichclosedandisolatedclassroomteachingtogreatlyexpandTheamountofteachingknowledge.Sohowdoteachersusecomputerstobuildamultimediamateriallibrarythatisconvenientandconducivetotheproductionofcourseware?Infact,weonlyneedtopayattentiontoandaccumulate,payattentiontothecollectionandproductionofmultimediamaterials,thatis,text,images,animation,soundandvideoBycollectingandpreparingvarioustypesofmultimediamaterialssuchasimages,youcanbuildaconvenientandeffectivemateriallibraryformakingundergraduatecoursewarebyyourself.

Tekstin valmistelu

Multimediamateriaalikirjaston tekstiä käytetään pääasiassa esittelemään otsikoita, painikkeiden nimiä, valikkoja ja opetussisältöä jne.

isthemaincomponentofthemateriallibrary,andmainlyadoptsthefollowingtwoforms:

Ordinarytext:inputtextcontentdirectlyinthesystemcreationenvironment,orthroughexternaltextEditingsoftware(suchasWPS,WORD,etc.)makestextfilesorRichTextformatfiles(RTEformat),andusesfunctionsinbasicdevelopmenttools(suchasVisualBasic)toreadthepresentationarea.Thetwomethodshavedifferentpurposes.Thetextfileenteredintheauthoringenvironmentismainlyusedforoccasionswheretheamountoftextisnotlargeandtherearenospecialrequirements.Ifalargeamountoftextinputisrequired,andthedisplayofthetextrequirescertainconditionalcontrol,youshouldconsidermakinganexternalfileorRTEfileexternally;

Graphictext:Thegraphicfileisrelativetotheruntimeoftheapplication.Intermsofthetextcontentseenbythemanipulator.

Strictlyspeaking,thistypeoffileshouldactuallybelongtothegraphiccategory,whichiscalledgraphictext.Theamountofmaterialforgraphictextisrelativelylarge,butithasitsownadvantages.Youcanperformspecialeffectsprocessingongraphictext,suchastransparentcharacters,three-dimensionalcharacters,andgradientcharacters.Thegraphictextisnotonlyveryartistic,butalsoveryexpressiveandappealing.ThegraphictextinthemultimediamateriallibrarycanbemadeingraphicsoftwaresuchaspaintbrushorPhotoshop5.0.

Kuvien valmistelu

Multimediamateriaalikirjastossa olevia kuvia käytetään pääasiassa taustoihin, kuvituksiin, graafisiin vuorovaikutusalueisiin ja graafisiin painikkeisiin jne.

throughthefollowingWaystoachieve:(1)Usetheimagesintheimagemateriallibrary.Thebackgroundimages,buttongraphicsandcursorgraphicsinthemultimediamateriallibrarycanbeselectedfromthemateriallibrary.Alargenumberofimagematerialsareprovidedintheimagemateriallibrary,whicharegenerallystoredinharddisksorCD-ROMs.Wecanselectmanyimagessuitableforuseinthemultimediamateriallibrary.(2)Usethescannertoinputtheimage.Thefunctionofthescannercandigitizeexternallydrawngraphics,photosandprintedpicturesandinputthemintothecomputer.Therelevantillustrationsoftheteachingcontentinthemultimediamateriallibraryareobtainedthroughthismethod.(3)Usedrawingsoftwaretomake.UseWindowsPaintbrushorprofessionaldrawingsoftwarePainter,CorelDraw,etc.todrawsimplestrokesinmultimediateachingsoftwaredirectlyonthecomputer.(4)Usescreencapturetoobtainimages.Forsomeicons,buttongraphicsandothermaterials,aspecialapplication(suchasPiazzus)isgenerallyusedtocapturethescreen.(5)Useimagesynthesistoobtainimages.Imagesynthesisreferstotakingoutpartorpartsofmultipleimagesinimageprocessingsoftwareandrecombiningthemintooneimage.ImagesynthesisinthemultimediamateriallibrarycanbeperformedinimagesoftwaresuchasPhotoshopandPhotoStyle.(6)Usegraphicsproductionsoftwaretogenerateimages.Inthemultimediamateriallibrary,youcanuseprofessionalanimationproductionsoftware3DstudioMaxtocreatethree-dimensionalcharactersandsimulatedobjects.

Mediainscription

Preparationofanimation

Animationisasimulationofthemovementandchangeofthings.Theanimationsinthemultimediamateriallibraryarebothtwo-dimensionalandthree-dimensional.Therefore,thetypesofanimationproductioncanbedividedinto:(1)Two-dimensionalanimationproduction.UseAnimatorProandDirectortwosoftwaretoolstoachieve.AnimatorProisaprofessionalanimationproductiontoolthatcangeneratetraditionalanimation,bitmapanimation,filmanimation,deformationanimation,textanimationandcoloranimation.AlthoughDirectorisamultimediaauthoringtool,productsmadeinDirectorcangenerateanimationfiles,suchasMMMandAVIformats,andDirectoritselfhasstronganimationproductioncapabilities.Therefore,youcanuseDirectortomaketwo-dimensionalanimations.(2)Three-dimensionalanimationproduction.Comparedwithtwo-dimensionalanimation,three-dimensionalanimationnotonlyhasthecharacteristicsoftwo-dimensionalanimationXYplane,butalsoaddsdepthdimension.Throughmaterialprocessing,thetextureofmovingobjectsisproduced.Undertheactionoflightandcamera,themotioneffectisverygood.lifelike.The3Danimationinthemultimediamateriallibraryismadein3DstudioMax.3DstudioMaxhasaverypowerfulanimationfunction,andthecoloringoutputspeedisrelativelyfast.Inadditiontothedescriptionofthemotionprocess,thefinalanimationfilealsointegratessoundelementstoenhancetheperformanceoftheanimation.Inaddition,wecanalsodirectlyuseprogramminglanguagetowriteanimationprograms.

Audioproduction

Thesoundtypesofthemultimediamateriallibraryincludesound,musicandeffectsound.Thesoundreferstothedemonstrationsoundandcommentary,themusicreferstothebackgroundmusicandthemainmusic,andtheeffectsoundisusedforthekeys.Theproductionofaudiorequireshardware,thatis,thesupportoftheaudiocard.TheprocessingsoftwarechoosesWaveStudio2.0whichisattachedtoCreative,andmakestheaudioofthemultimediamateriallibrarythroughthefollowingmethods(1)sound.First,recordMandarinonametaltape,andtheninputtheaudiosignalintothecomputerthroughtherecordingdeck,andthendigitizetheaudiosignalforfurtherprocessing.(2)Music.ChooseaCDplayerorarecordingdecktoinputtheaudiosignalintothecomputerfordigitization.(3)Effectsound.ChoosetosavethecontentintheharddiskorCD-ROMsoundeffectlibrary.

Theproductionofvideoimages

Inthemultimediamateriallibrary,theprocessingofvideoimagescanadopthardwarecompressionandsoftwareplaybackmethods.ThismethodistocombinethevideosourceimageUseavideocardtocapture,andthenselectthecorrespondingcompressionstandardforstorage.ThevideocardcanuseCreative'sRT300videocard,andthecompressionstandardusesIntel'sIndeovideoInteractive.VideocompressionandprocessingsoftwareselectsPremiere,VideoStudio,VideoForWindowsAndsoonsoftware.

Inaddition,therearemanyexcellentmultimediamaterialsinsomeelectronicpublications,whichshouldbecollectedandsortedoutatordinarytimes.Thisisalsoaneffectivewaytoimprovetheproductionspeedandthequalityofthemultimediamateriallibrary.Whatwehavesaidaboveisallaboutthecollectionofmaterials.Next,wewillorganizeandeditthematerialssothatwecanoutputthesematerialswhenmakingthecourseware,sothatwecanmakeexquisitecoursewarequicklyandwell.

TheconceptofusingmultimediatomakecoursewarewasintroducedintoChinafromabroadinthelate1970sandearly1980s.Afterthe1990s,themultimediafunctionsofcomputersbecamestrongerandstronger.VariouscoursewaredevelopmenttoolplatformsoftwaresuchasAuthorWareDirector,FounderOrsi,etc.madethecoursewaredevelopmentmoreandmoreconvenient,andtheexpressivenessofthecoursewarebecamemorepowerful.Foraperiodoftime,thedesign,developmentandapplicationofcoursewarehasgraduallybecomethecenteroftheapplicationofeducationaltechnologyinschoolteachinginourcountry.

Butinpractice,wegraduallydiscoveredthatalthoughcoursewarecanassistteachersincreatingteachingscenariosandteachingknowledgeinclassroomteaching,therearetwomoreandmoreobviouslimitationsinthedesignofcourseware.Thefirstisthatinthepast,thecoursewaredesignideasthatweredeterminedinadvancebytheteachingdesign,hadfixedprocedures,stereotypes,closed,andintegratedcoursewaredidnotadapttotheever-changingrealityofclassroomteaching;thesecondwasthatthecoursewarewasoftenbasedonteachingasthecenter.Thedesignthinkingneedstobeadjustedinthetransformationofthelearning-centeredteachingmodel.Aimingatthefirstlimitationofthecoursewarethinking,somepeopleproposedtheintegrablewarethinking,whichistodevelopateachingsoftwaresystemthatteachersandstudentscombineandusemultimediateachinginformationresourcesaccordingtoteachingneeds.Thecoreofintegrablewareishumansubjectivity,elementarynatureofteachingresources,reorganization,opennessandsoon.Aftertheconceptofintegrablewarewasputforward,itwasquicklywelcomedbyfirst-lineteachersinprimaryandsecondaryschools.Moreandmoreteachersandsomeeducationalsoftwarecompanieshavegraduallyshiftedthedesignideasofmakingcoursewareinthepasttoopen,combinable,andmicro-teachingunitsbasedonmateriallibraries.Theideaof​​thelibrary'sintegrablewareteachingsoftware.Theyusetheideaof​​IntegrableWaretodesignauniversalnetworkcoursecombinationframeworkplatform.Theteachingcontentofeachsubjectonlyneedstobedesignedintounitsthatcanbefreelycombinedandfilled,whichimprovestheopennessandcombinationofcoursesandthereusabilityofteachingresources.Andthedynamicupdatefunctionofcoursecontent.Then,asateacher,wemustalsochangeourthinking.Wemusttransferfromcoursewaredesigntoteachingdesigninaninformationenvironment,establishneweducationalconcepts,mastertheuseofinformationtools,andlearntomakefulluseofmoderninformationtechnologyandInformationresources,scientificallyarrangethevariouslinksandelementsoftheteachingprocesstoachievetheoptimizationoftheteachingprocess.

Developmenttrend

Futureresearchonmultimediamainlyincludesthefollowingresearchaspects:datacompression,multimediainformationcharacteristicsandmodeling,multimediainformationorganizationandmanagement,multimediainformationperformanceAndinteraction,multimediacommunicationanddistributedprocessing,multimediahardwareandsoftwareplatform,

teräväpiirtonäyttö

virtualrealitytechnology,multimediaapplicationdevelopment.Lookingforwardtothefuture,interactivemultimediathatblendsnetworkandcomputertechnologywillbecomethedirectionofmultimediadevelopmentinthe21stcentury.Theso-calledinteractivemultimediareferstonotonlyreceivingandselectinginformationfromthenetwork,butalsosendinginformation.Theinformationistransmittedintheformofmultimedia.Usingthistechnology,peoplecanshopathomeandordertheirfavoriteTVprograms.Therealizationofinteractivemultimediatechnologyinthe21stcenturywillbebasedontelevisionsorpersonalcomputers.Itisdifficulttosaywhowilldominatethefuturemarket.

Thefutureofmultimediaisexciting.Theamountofdigitalinformationinourliveswillincreasedramaticallyinthenextfewdecades,andthequalitywillalsobegreatlyimproved.Multimediaisenteringmanyaspectsofpeople'slivesinarapidandunexpectedway.Thegeneraltrendisthatallaspectswilldevelopinthedirectionofintegrationoftoday'snewtechnologies,including:large-capacityCDstorage,theInternet,andinteractiveTV.Thissynthesisisatthecoreofabroadrevolution.Itnotonlyaffectsthewayinformationispackagedandhowweuseit,butitwillalsochangethewaywecommunicatewitheachother.