MP4 → AMR

Guqula Eyakho MP4 kuya AMR amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

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

Ukulayisha

Indlela yokuguqula MP4 kuya AMR

Isinyathelo 1: Layisha eyakho MP4 amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

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

Isinyathelo 3: Landa i-version yakho AMR amafayela

MP4 kuya AMR Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyikhipha kanjani umsindo kusuka kuhele MP4 njenge AMR?

Layisha phezulu ihele MP4 futhi sizosusa umsindo, bese siyiguqula ibe yi AMR. Akukho lutho oludlulayo lwevidiyo futhi akukho lutho olulahlekile olungaphezu kwelokho okushiwo yi-AMR codec; i / extract-audio/ ithuluzi lisebenza nge-pipeline efanayo.

Yini i-bitrate yomsindo isebenzisa ihele AMR?

Iphutha AMR i-bitrate yi-192 kbps (icacile kumculo). Nciphisa ku-320 kbps (audiophile), 128 kbps (podcast ejwayelekile), noma 96 kbps (ubizo / ifayela elincane). Ukhetho lushintsha ubukhulu befayela ngokuhambisana nokulalela futhi luvela ezinketho eziphezulu ngaphambi kokuguqulwa.

Ingabe ngizolahlekelwa ubunjani besandi uma ngisuka ku MP4 kuya ku AMR?

Uma AMR ingekho lutho (WAV, FLAC), yonke isampula yomsuka womsindo igcinwa ngokugcwele. Uma AMR ingekho lutho (MP3, AAC, OGG, Opus), i-AMR codec icindezela futhi — ku-192 kbps okuzenzakalelayo lokhu kucacile kuzo zonke izinto zomsuka.

Ingabe i-AMR ekhishwayo igcina isilinganiso esijwayelekile?

Ngokungagqibekanga yebo — umsindo we-48 kHz ngaphakathi kwe-MP4 uzoba yi-48 kHz ngaphakathi kwe-AMR. Uma ufuna i-44.1 kHz (ukulingana kwekhwalithi ye-CD) i-sample-rate ethuthukisiwe ehlathini liphatha ukusampelwa kabusha ngesihluzi esisezingeni eliphakeme (akukho zinto ezibonakalayo ezibizwa nge-alias).

Ingabe ngizokhipha umsindo kusuka ku MP4 amafayela amaningi kuya ku AMR ngeqembu elilodwa?

Yebo — susa ifolda ye MP4 amafayela ngaphakathi futhi sizokhipha umsindo ngokufanayo. Abasebenzisi abaphezulu bathola abasebenzi abafanayo futhi akukho lutho oluphezulu lwesayizi yefayela ngalinye; kuhele olunefayela le-50 le ngxenye iyinto ehlukile phakathi kwamasekondi angama-90 namaminithi angama-8.

Ingabe ihele AMR lizophawulwa ngesihloko / umculi / i-albhamu?

Uma i-MP4 ifaka isiqephu noma i-metadata yokusakaza (ejwayelekile kuma-DVD rips, amapodcasts, imisindo yevidiyo), sikopa ama-artist / isihloko / ama-albums ezindaweni ezingaphakathi kwe-AMR. Ama-MP4 angekho emthethweni akhiqiza ama-AMR angaphawulwanga — sebenzisa umhleli wesihloko (Mp3tag, Picard, MusicBrainz) ngemuva uma izihloko eziningi zibalulekile.

Ingabe kuthatha isikhathi esingakanani ukukhishwa kwe AMR kusuka kuhele MP4?

Ukukhishwa komsindo kusheshe kakhulu kunakhodiwe kabusha kwevidiyo - 5-15% yokuphela komthombo. Ihora le-1 MP4 → AMR liphele ngemizuzu engu-3-9 ku-pipeline ejwayelekile; ividiyo yemizuzu emi-5 iphele ngemizuzu engaphansi.

Ingabe ngizokhipha kuphela isigaba se MP4 somsindo njenge AMR?

Akunalesi simo — khipha umsindo wonke njenge AMR kuqala, bese usebenzisa /audio-trim/ ukucisha isiqephu. Indlela yesigaba-sithathu ishesha kunalokho okwenziwa ngokuxhuma futhi ikuvumela ukuthi ubone kuqala umculo okhishwayo ngaphambi kokucisha.

Ingabe ihele lami MP4 liyimfihlo ngesikhathi sokukhipha umsindo?

Yebo — imodeli yobumfihlo efanayo nezo zonke iziguqulo kuwebhusayithi: abasebenzi abahlukanisiwe, ukususwa okuzenzakalelayo ngaphakathi kwemizuzu, akukho kuhlolwa komuntu kweaudiyo noma ividiyo. Bona /privacy/.

Kungani ihele lami AMR linezithuba ezingenalutho?

Izingcindezi ezinyamalalayo zisho ukuthi ihele MP4 linesilungiselelo somsindo se-multi-track (umbono, izilimi ezihlukile, izixhumanisi ezijikelezayo) futhi sikhethe umsinga ongalungile. Sebenzisa ukhetho oluthuthukisiwe "umsinga womsindo" ukukhetha umsinga 0, 1, njll., noma uphinde uhlanganise wonke umsinga ku-multi-track AMR ibhokisi uma AMR liyisekela.

Ingabe ukukhishwa kwe AMR kuyisistereo, mono, noma 5.1?

Uhlelo lwesixhumi lugcinwa kusuka ku MP4 ngokuzenzakalela — 5.1 MP4 kukhiqiza 5.1 AMR lapho i-codec ixhasa khona (AAC, FLAC, OGG, Opus). Nciphisa i-stereo noma i-mono nge-sixhumi-siphansi-sokukhetha; kusebenziseka ukuphuma kwe-podcast noma ukusakazwa kwe-bandwidth ephansi.

Ingabe i-AMR ekhishwayo idlala ku-iPhone, Android, noma i-stereo yemoto?

MP3 idlala emhlabeni wonke. AAC / M4A idlala ku-Apple nengxenye ye-Android. OGG / Opus idinga umdlali omusha ku-iOS kodwa idlala kahle ku-Chrome / Firefox / VLC. Isisetshenziswa esithuthukisiwe esisetshenzisiwe sikhetha i-AMR codec engcono kakhulu yokudlala kuhlelo lwakho oluzodlala.

MP4

Ifomethi yesitsha se-MP4 ingagcina ividiyo, umsindo, imibhalo engezansi, nezithombe kufayela elilodwa ngokucindezela okuhle kakhulu.

AMR

I-AMR (I-Adaptive Multi-Rate) ifomethi yokuminyanisa yomsindo elungiselelwe ukubhalwa kwekhodi yenkulumo. Ivamise ukusetshenziswa kumakhalekhukhwini ukuqoshwa kwezwi nokudlalwa komsindo.