Khupha isandi ukusuka kwi MP4

MP4 Umkhuphi Wesandi

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Iyalayisha

Ukukhupha njani i-audio kwi MP4

1 Layisha phezulu i MP4 videos ofuna ukuba irekhodi lesandi liphume kuyo.

2 Akukho nto yokukhetha kuyo: umkhondo wesandi ugcinwa njengefayili ye MP3.

3 Sebenzisa ukutywina; isandi sikhowudiwe kwi MP3 kwaye umfanekiso ushiyeka ngaphandle.

4 Layisha ezantsi ifayile yesandi; amacebo othotho-lotho anika umkhondo wokuqala, ngoko khangela ukuba umthombo wawuyi-rip.

Khupha isandi ukusuka kwi MP4 FAQ

Nantoni na ekhethekileyo kwi MP4 apha?

Ewe — I-MP4 igcina isalathisi sayo kwi-moov atom, ngoko ukudlulisa-ukukopa ukuhlela kufutshane-nokukhawuleza kwaye isiphumo sihlala sikhangela kakuhle kwisikhangeli. Umxholo osetyenziswayo xa ifayili ingaphezulu kwesinye isiqhagamshelanisi sesandi.

I-Khupha isandi ukusuka kwi MP4 ifumana njani isandi ngaphandle?

Ngokucacileyo, i audio stream i-demuxed ngaphandle kwesiqulathi seefayili; xa i-codec sele ifana nenjongo yakho ikopiwe nge-bit-identical ngaphandle kokuphinda ikhowudi, kwaye kuphela utshintsho lwe-codec olusemthethweni lubiza udidi. Oku ufumanayo kufayile yesandi equlethe umkhondo wesandi ooriginal, hayi ukurekhoda kwakhona kwayo.

Ingaba i Khupha isandi ukusuka kwi MP4 ibiza nantoni na?

Ayinakho. Khupha isandi ukusuka kwi MP4 ikhululekile ngaphandle kwe akhawunti, kwaye imveliso ayinawo umqondiso wamanzi, ikhonkco lelogo okanye ikhadi le intro. Ulayisho phezulu nesiphumo zicinywa ngokuzenzekelayo malunga neyure ezi 24 emva komsebenzi, eshiya ixesha lokulayisha ezantsi isiphumo.

Yintoni endinokuyilayisha kwi Khupha isandi ukusuka kwi MP4?

MP4, MOV, MKV, WebM, AVI, WMV, FLV, 3GP, M4V, MPEG ne MPG. Isiqulathi seefayili kunye ne-codec zivavanywa phambi kokuba nantoni na iqhube, ngoko ke iqela elidityanisiweyo liphathwa ngokuchanekileyo kwifayili nganye kunokuba lithathelwe ingqalelo ukuba lifanayo.

Ingaba kukho umda wobungakanani befayili kwi Khupha isandi ukusuka kwi MP4?

Ewe: i-akhawunti ekhululekileyo iqhubekeka ividiyo ukuya kwi-40 MB ngefayile, ngokuthe ngqo i-cap elungileyo kakhulu kwiwebhusayithi; i-ffmpeg ene-x264, x265 ne-libvpx isebenza, eyiyo enye i-toolchain ecaleni kwesoftware yevidiyo ye-desktop. Ividiyo yisapho elinye apho i-cap iphezulu ngokwaneleyo ukuba ikhuphe ixesha, hayi umda, yiyo into oza kuyiqaphela.

Kutheni i MP3 inxuwa liququzelela Khupha isandi ukusuka kwi MP4?

MP3.to ibekwe phantsi kwefomati eyenza umsindo ophathekayo oqhelekileyo: odlalayo jikelele, omncinci ngokwaneleyo ukulibaziseka, nolahlekelwe ngumsindo ngendlela ebalulekileyo kuphela ukuba ugcina ukuphinda ukhowudi. Uluhlu lwemisebenzi yesandi: umntu ofanayo ofuna ubungakanani obutshintshiweyo uhlala efuna ifayile yokutywina, ethe nkqo okanye eyenziwe incinane kwimeko efanayo. Ukubeka Khupha isandi ukusuka kwi MP4 ngasemva kokukhuphela okufanayo, icaps ezifanayo neakhawunti efanayo iguqula i-tabs ezintathu zibe enye.

Ndiza kwenza ntoni ngeziphumo xa i Khupha isandi ukusuka kwi MP4 igqityiwe?

Umguquli kule ndawo uhambisa umsindo phakathi kwe MP3, WAV, FLAC, M4A, OGG ne Opus, ngoko ubungakanani bemveliso bugqibo onokuthi ushiye kude kube sekupheleni kunokuba ubeke phambili ekuqaleni. Ukwenza oko emva Khupha isandi ukusuka kwi MP4 kunokuba phambi ithetha ukuba ukukopela kwenziwa kabini, kwifayile oyibeke ngokuqinisekileyo, endaweni yexesha elinye.

Ingaba Khupha isandi ukusuka kwi MP4 apha isixhobo esifanayo esisebenza kumasayithi afana nalowo?

Iinjini zinikezelwa - i ffmpeg efanayo yokwakha, abasebenzi abafanayo, imida efanayo. Oku MP3 inxuwa lidibanisa yindawo yokujonga malunga nebitrates, malunga nokuba iphila njani ikhowudi kunye malunga nokuba xa i-lossless intermediate ixabiso ixesha lokulayisha. Iqala kwakhona kwinyani enye malunga nefomati le ndawo ibizwa emva: Ii-frames ze-MP3 zii-blocks ezinobungakanani obumiselweyo, ngoko ukutywina kuwela kumda we-frame kwaye abaphawuli bokudlala abangena-thuba ababuyi kuqhubeka nokuphinda bakhowudi.

Ndifuna i-akhawunti, kwaye ngaba kukho into egcinwa?

Akukho akhawunti ifunekayo. Ulayisho phezulu kunye neziphumo zigcinwa malunga neyure ezili-24, eshiya ixesha lokulayisha ezantsi iziphumo, kwaye ke zicinywe ngokuzenzekelayo; akukho mntu ufunda, uluhlu okanye ubonisa izikhombisi. Iifayile ezininzi kwimisebenzi enye zifuna inkqubo ehlawulweyo.