Chinja MP4 kuti M4A

Chinja Yako MP4 kuti M4A zvinyorwa zvisingaite

Sarudza mafaira ako

*Mafaira adzimwa mushure memaawa makumi maviri nemana

Shandura mafaira anosvika 1 GB mahara, vashandisi vePro vanogona kushandura mafaira anosvika 100 GB; Nyorera izvozvi

Kuisa

Maitiro ekushandura MP4 kuti M4A

Danho 1: Isa yako MP4 mafaira uchishandisa bhatani riri pamusoro kana nekudhonza nekudonhedza.

Danho rechipiri: Dzvanya bhatani rekuti 'Convert' kuti utange kushandura.

Danho rechitatu: Dhawunirodha yako yakashandurwa M4A mafaira

MP4 kuti M4A Mibvunzo Inowanzo bvunzwa Nezvekuchinja

Ndiani anokwanisa kundibatsira kuti ndiwane MP4 file uye ndiite M4A file?

Upload the MP4 file and we demux the audio track, then transcode it to M4A. There is no second video pass and no quality loss beyond what the M4A codec itself introduces.

Ndeipi audio bitrate iyo M4A faira inoshandisa?

Chirongwa chekuisa M4A chine bitrate ye 192 kbps (inoratidzika zvakanaka kune mimhanzi). Unogona kuchinja kuita 320 kbps (yekutamba) kana 96-128 kbps (yekutaura / podcast / isingasviki faira). Unogona kuchinja bitrate mune zvakawedzera sarudzo pamberi pekubvisa.

Ndicharasikirwa sei nemhando yezwi kubva ku MP4 kuenda ku M4A?

Kana M4A iri lossless (WAV, FLAC), ese masampuli anochengetwa zvakakwana. Kana M4A iri lossy (MP3, AAC, OGG, Opus), M4A codec inodzosera kumanikidza — pa192 kbps izvi zvinoonekwa nevanhu vazhinji. Kudzosa hunhu hwaive hwatoenda mu MP4 source hazvigoneke.

Kana M4A yaiswa, inogara iri neyakajairika sampling rate?

Zviri pachena kuti hapana — 48 kHz audio track mu MP4 ichange 48 kHz mu M4A. Kana iwe uchida 44.1 kHz (CD-quality) kuti ugone kutamba nemitambo yakare, zvinokosha kuti uite sarudzo dzekuwedzera kuti uone kuti ndeipi sampling-rate inoenda pasi uye kuti idzokere ku 48 kHz.

Ndinogona kubvisa audio kubva kune akawanda MP4 mafaera ku M4A muimwe batch?

Yeah — bvisa folder ye MP4 mafaera uye isu tinotora audio muparallel. Pro vashandisi vanowana vashandi vanopfuura maparallel; pa50-file batch iyi ndiyo kusiyana pakati pe90 masekondi ne8 maminitsi.

Chii chinoita kuti M4A faira riite sezita / muimbi / album?

Kana MP4 container ine chapter kana stream metadata, isu tinokopa muimbi / zita / album maindasitiri mu M4A container uko M4A format inotsigira ma tags. Kana M4A file isiri ine ma tags — shandisa tag editor (Mp3tag, Picard) mushure mekutumira kunze kwea rich tags.

Ndeipi nguva inotora kubvisa M4A kubva ku MP4 faira?

Audio kubvisa iri nyore kupfuura video re-encoding - zvinoitika 5-15% yechigadzirwa nguva. 1-hour MP4 -> M4A anosvika 3-9 maminitsi pazviyero pipeline.

Ndinogona kubvisa chete chikamu che MP4 audio se M4A?

Hapana munzira iyi chete — bvisa zvese zvemavhidhiyo se M4A pano, wozoshandisa /audio-trim/ kana /audio-cutter/ kuti uite clip yechikamu. Iyo nzira ine mastep maviri inoita kuti zvive nyore kupfuura kubatanidza zviitiko zviviri nekuti isu tinoedza kubvisa kudzokorora kwefaira rese kaviri.

Ndiani anoshandisa MP4 faira?

Yechokwadi — imwe chete neyekuchengeteka model sezvaanoita nezvose zvinoshandura: vanoshanda vakazvimirira, otomatiki kubvisa mukati memazuva, hapana munhu anoongorora zvinhu.

Nei yangu M4A faira ine zvikanganiso zvisina kunaka?

Chigaro chakasviba chinoreva kuti MP4 faira raive nemulti-track audio layout uye isu takatora imwe chete isina kunaka. Dzvanya pane "audio stream" sarudzo kuti utore imwe chete 0, 1, etc., kana kuti udzoreredze kuisa zvese zvinobuda mu M4A multi-track container apo M4A inotsigira izvi.

Chii chinonzi M4A?

Chikuva chimiro chinochengetwa kubva ku MP4 ne default — 5.1 MP4 chinogadzira 5.1 M4A apo codec inotsigira (AAC, FLAC, OGG, Opus). Unogona kumanikidza stereo kana mono kuburikidza ne channel-downmix sarudzo, iyo inobatsira kune podcast workflow.

Iine yakavakirwa M4A kutamba pa iPhone / Android / car stereo?

MP3 inotamba panzvimbo dzose. AAC / M4A inotamba paApple uye Android. OGG / Opus inodiwa neyakapfuura mutambi paIOS. Advanced options inoburitsa "device" preset iyo inotora M4A codec iyo inogona kutamba panzvimbo yako.