MOV → M4A

Guqula Eyakho MOV kuya M4A amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

I-Free Plan: 1 Ukushintsha/ihora · Iya ngaphandle komkhawulo →

Guqula amafayela afinyelela ku-1 GB mahhala, abasebenzisi be-Pro bangaguqula amafayela afinyelela ku-100 GB; Bhalisa manje

Ukulayisha

Indlela yokuguqula MOV kuya M4A

Isinyathelo 1: Layisha eyakho MOV amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho M4A amafayela

MOV kuya M4A Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyikhipha kanjani umsindo kusuka kuhele lami MOV njenge M4A?

Layisha phezulu ihele MOV futhi umguquli ukhipha umsindo, bese uguqula ikhodi liyi M4A. Akukho sikhathi sevidiyo sesibili - umsindo obonakalayo ususwa ngokushesha ngakho-ke ukukhishwa kusheshe kakhulu kunalokho okuphelele kokuphinde uguqule ikhodi. MOV Apple's QuickTime isitsha, ethunyelwe ngo-1991 futhi akazange ashintshe ifomu iPhone, iPad noma Final Cut Pro timeline ubhala ngokuzenzakalela. M4A yi MP4 ibhokisi elimaza umsindo kuphela, futhi lokhu iTunes, Apple Music kanye iPhone Voice Memos app kukhiqiza.

Ingabe ukushintsha MOV kuya ku M4A kuyingxenye yesithathu yokucindezela okulahlekile?

Yebo, futhi kufanelekile ukuhlela. Izifomethi zombili ziyi-lossy, ngakho-ke i-M4A encoder isebenza kusuka kumsindo osele udlulele engxenyeni eyodwa ye-psychoacoustic, futhi iziphakamiso zayo zihlanganisa isiqephu sokuqala. Ku-192 kbps noma ngaphezulu, imiphumela ihlala icacile kakhulu. Uma une-lossless master nganoma yikuphi, uku-encoding i-M4A kusuka kulo kunciphisa ukudlula okuphindiwe ngokuphelele. I-MOV ivame ukuthwala i-H.264 noma i-HEVC yokudlulisa, noma i-ProRes uma iyi-editor master, kanye ne-AAC noma umsindo we-PCM ongacindezelwa. M4A igcina i-AAC emibonweni eminingi, noma i-Apple Lossless (ALAC) uma ivela ku-lossless rip.

Ingabe ngiyiphawula i M4A ngemininingwane yomuntu odlalayo ne-album?

Yebo, futhi kuyinzuzo engokoqobo ngaphezulu kwe MOV, engeke ikwazi ukugcinwa kuphi naphi. M4A ifaka isihloko, umculi, i-album, unyaka, inani le-track kanye ne-cover art efakwe ngaphakathi kwebhokisi, ngakho-ke i-library yomculo ifaka ngokulungile ngaphandle kokufaka isandla. M4A igcina i-iTunes-style metadata, amasigaba kanye nemisebenzi yezandla egcwele, futhi iyifomethi yomsindo ovela ezweni lonke kunoma iyiphi idivayisi ye-Apple.

Yini i-bitrate yomsindo osetshenziswa yi-M4A ekhishwayo?

Izinga le-bit elimiselwe le-lossy M4A yi-192 kbps, elicacile kumculo. Ungashintsha ufike ku-320 kbps (audiophile) noma 96-128 kbps (ubizo / ipodcast / ifayela elincane). Izinga le-bit eliphansi livela ezinketho eziphezulu ngaphambi kokuba ucofe uguqule.

Ingabe ngizolahlekelwa ubunjani besandi uma ngisuka ku MOV kuya ku M4A?

Uma M4A ingekho lutho (WAV, FLAC), yonke isampula igcinwa ngokugcwele. Uma M4A ingekho lutho (MP3, AAC, OGG, Opus), i-M4A codec icindezela kabusha umsuka womsindo — ku-192 kbps imiphumela icacile cishe kuzo zonke izithako. Ukuya kwe-nothing → akukho lutho akugcini nje ngokubuyisela imininingwane ekhishwe.

Ingabe umsindo M4A ugcina isilinganiso sokuqala sesampula?

Ngephutha yebo — 48 kHz umsindo ku MOV wakho uhlala 48 kHz ku M4A kuphuma. Ukukhuphula i-CD noma ukuhambisana nomdlali odala ungakhuphula isampula ku-44.1 kHz ngesampula-rate dropdown; isampula ephindayo isezingeni eliphakeme le-SoX.

Ingabe ngizokhipha umsindo kusuka ku MOV amafayela amaningi kuya ku M4A ngeqembu elilodwa?

Yebo — susa ifolda ye MOV amafayela futhi sizokhipha umsindo ngokufanayo. Abasebenzisi abaphezulu bathola abasebenzi abafanayo; kuhele olune-50-batches lokhu kuyinto ehlukile phakathi kwemizuzu emihlanu nemizuzu eyisithupha.

Ingabe i-M4A izophawulwa ngesihloko / umculi / i-album metadata?

Uma i MOV ithatha isiqephu noma i-stream metadata, sikopa isihloko / umculi / ama-album ama-fields kwi-M4A container. Uma kungenjalo, i-M4A iphuma ingaphawuliwe — sebenzisa umhleli wesihloko (Mp3tag, Picard) ngemuva kokuthumela ngaphandle ukuze uphawulwe ngokunethezeka.

Ingabe kuthatha isikhathi esingakanani ukukhishwa kwe M4A umsindo kusuka ku-MOV wehora elilodwa?

Umsindo demux + ukukopela kushesha — 5 kuya ku-15% yesikhathi somthombo. Ihora le-1 MOV → M4A liphele ngemizuzu engu-3 kuya ku-9 ku-pipeline ejwayelekile; i-Premium parallelism isusa lokhu ngaphezu kwemisebenzi yeqembu.

Ingabe ngizokhipha kuphela isigaba se MOV somsindo njenge M4A?

Akunalesi sisetshenziswa ngokuqondile — khipha umsindo wonke njenge M4A, bese usebenzisa /audio-trim/ noma /audio-cutter/ ukucisha inqwaba. Indlela yezinhlangothi ezimbili ivame ukuba isheshe kunalokho okwenziwayo futhi ikunikeza ukulawula okucacile kwe-waveform-level.

Ingabe ihele lami MOV liyimfihlo ngesikhathi sokukhipha umsindo?

Yebo - imodeli yobumfihlo efanayo njengezo zonke iziguqulo: abasebenzi abahlukanisiwe, akukho kuhlolwa komuntu, ukususwa okuzenzakalelayo ngaphakathi kwemizuzu yokuqedwa. Ifasitela lokugcinwa okuningiliziwe ku /privacy/.

Kungani ihele M4A linezingcindezi ezingenalutho lapho i MOV ikhona umsindo?

Kuyinto evamile ukukhethwa kwe-stream engalungile: MOV iqukethe ama-tracks omsindo amaningi futhi i-demuxer ikhetha umsindo ongenalutho noma osiza. Sebenzisa isikhethi esithuthukisiwe "i-stream yomsindo" ukukhetha umsindo 0, 1, 2 ngokucacile, noma ubeke i-M4A ibhokisi elixhasa i-multi-track output (FLAC, OGG).

MOV

I-MOV iyifomethi ye-QuickTime ye-Apple, esekela ividiyo nomsindo wekhwalithi ephezulu wokuhlela kobungcweti.

M4A

I-M4A ifomethi yefayela lomsindo ehlobene eduze ne-MP4. Inikeza ukucindezelwa komsindo kwekhwalithi ephezulu ngokusekelwa kwemethadatha, okuyenza ifanelekele izinhlelo zokusebenza ezihlukahlukene.