MP4 → M4A

Guqula Eyakho MP4 ukuba M4A iifayile ngokulula

Khetha iifayile zakho

okanye rhuqa uze ushiye iifayile zakho apha

Inkqubo ekhululekileyo: 1 IiNguqulelo/iyure · Yiya ngaphandle komda →

Guqula iifayile ezifikelela kwi-1 GB simahla, abasebenzisi bePro banokuguqula iifayile ezifikelela kwi-100 GB; Bhalisa ngoku

Iyalayisha

Indlela yokuguqula MP4 ukuba M4A

Inyathelo 1: Layisha eyakho MP4 iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

Inyathelo lesi-2: Cofa iqhosha elithi 'Guqula' ukuze uqalise ukuguqula.

Inyathelo lesi-3: Khuphela i-converted yakho M4A iifayile

MP4 ukuba M4A Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyikhupha njani kuphela i-audio track ukusuka kwi MP4 njenge M4A?

Layisha phezulu ifayili MP4 kwaye umguquli ukhupha umsinga wesandi ukusuka kwisiqulathi seefayili MP4, emva koko uguqula ikhowudi ibe yi M4A. Ii-frames zevidiyo zilahliwe — akukho xesha lesibini lokudlulisa ividiyo, akukho lahlekelwa komgangatho ngaphezulu kwento ekhoyo kwi-M4A codec.

Ingoma yesandi eyiphi ephumayo xa MP4 yam iqulethe ezininzi?

Ngokungagqibekanga umsinga 0 (umkhondo wokuqala wesandi, ngokuqhelekileyo umxube omkhulu). Ukuba i-MP4 yakho ithatha iinkcazelo, i-dubs, okanye i-audio echazayo kwiimvavanyo ezongezelelweyo, umkhethi ophambili "umsinga wesandi" ukuvumela ukuba ukhethe 1, 2, 3... ngokucacileyo. Uluhlu lwemikhondo luboniswe kwimboniso yokukhuphela ukuze ungakhetha ngokuzifihla.

I-M4A ifayili isebenzisa i-bitrate enjani?

I-M4A emiselweyo ye-bitrate yi-192 kbps (ibonisa ngaphaya kwengoma kwiimvakalelo ezininzi). Nciphisa kwi-320 kbps yemveliso yeaudiophile, okanye 96-128 kbps yelizwi/ipodcast apho ifayili encinci iphambili. Iinjongo ezingalahlekiyo M4A (WAV, FLAC) zingahoyi isicwangciso se-bitrate kwaye zigcine zonke iiseti.

Ingaba ukutshintsha ukusuka ku MP4 ukuya ku M4A kuya kunyusa ubunjani besandi sam?

Ukuba i M4A ifomati ayilahleki (WAV, FLAC, ALAC), yonke isampuli ebhaliweyo igcinwa. Ukuba i M4A ilahlekile (MP3, AAC, OGG, Opus), i-codec iphinda icinezele - kwi-192 kbps utshintsho aluthethiweyo kwizinto ezininzi; kwi-96 kbps ungava i-cymbals okanye i-sibilants ecocekileyo. I-MP4 isiqwengana asiyi kubangela oku - i-codec kuphela emiselweyo ebalulekileyo.

Ingaba i-M4A ekhutshweyo igcina i-MP4 inqanaba lesampuli?

Ngokungagqibekanga ewe — 48 kHz MP4 isandi siyi 48 kHz M4A isandi, 44.1 kHz siyi 44.1 kHz. Ukuba ufuna ukunyusa isampuli ukuhambelana (umzekelo. 96 kHz studio masters ukuya 44.1 kHz CD-quality M4A) isampuli-rate dropdown yenza oku ngesampuli ephezulu-yexabiso.

Ndingazikhuphela njani ii-M4A zesandi kwisiqulathi seefayili se-MP4?

Ewe — susa isiqulathi seefayili MP4 kwindawo yokulayisha kwaye siqhube ukususwa ngokuthe tye. I-Premium ifumana abasebenzi abathe tye abaninzi; kwi-100-file batch (uluhlu lwemiculo-ividiyo) le yi-difference phakathi kweemizuzu ezi-90 nemizuzu eli-8.

Ithatha ixesha elingakanani ukutsala i-M4A ukusuka kwi-1-iyure i-MP4?

I-audio demux + transcode iqhuba ngokukhawuleza kunevidiyo yokubuyisela kwikhowudi - ihlala i-5-15% yobude bomthombo. Iyure ye-1 MP4 -> M4A igqiba kwimizuzu ye-3-9 kwindlela eqhelekileyo yokuhambisa. Ukuba i-M4A codec ifana ne-source codec sele kwi-MP4 (eqhelekileyo kwi-AAC ngaphakathi MKV / MP4), yi-remux ecocekileyo kwaye iqhuba kwimizuzu.

Ingaba ifayili M4A izakuthwala isihloko / umculi / i-tag ye-albham?

Ukuba i-MP4 ifayili igcina i-metadata yokuhamba (umculi, isihloko, i-albham), sikopa ezi ndawo kwi M4A isiqulathi seefayili apho ifomati ixhasa ii-tags. ID3v2 (MP3), i-Vorbis iphawula (OGG, FLAC), i-MP4 i-atoms (AAC / M4A), RIFF INFO (WAV) zonke zibhalwe. I-Untagged MP4 ivelisa i-untagged M4A — sebenzisa i- Mp3tag okanye i-Picard emva-korhwebo ngaphandle ukunika amandla.

Ingaba i MP4 yam ifihlakeleyo xa ndisusa umsindo?

Ewe - imodeli yobumfihlo efanayo neyokuguqulwa ngalinye. Umsuka MP4 nemveliso M4A ziqhubekekiswa kubasebenzi abakhuselekileyo kwaye zicinywe kwimizuzu. Asiyi kudlala, sigcine, okanye sisebenzise imixholo. Bona /privacy/.

Kutheni i M4A yam isebenzisa izithuba ezizinyamalalayo okanye isebenzisa isandi esingalunganga?

I-MP4 yakho iqulethe ubeko lwesandi se-multi-track kwaye sakhupha umsinga ongachanekanga (umzekelo, umsinga wesandi ochazayo okhululekileyo endaweni yoxubo oluphambili). Phinda uqhube nge "umsinga wesandi" ophambili okhethwayo omiselwe kwisikhombisi esifanelekileyo, okanye ukhethe "zonke iziqhagamshelanisi" ukukhupha umsinga ngamnye njengefayili ehlukileyo ye M4A.

Ingaba ukususwa kwe M4A ku stereo, mono, okanye 5.1?

Ubeko lwesiqhagamshelanisi lulandela i MP4 ngokumiselweyo: 5.1 MP4 umsinga wesandi uvelisa i 5.1 M4A apho i-codec ixhasa khona (AAC, FLAC, OGG, Opus). Ukhetho lwesiqhagamshelanisi-sokunxulumana phantsi lukhuthaza i-stereo okanye i-mono — luncedo kwipodcast yokuhamba komsebenzi okanye ukuhambelana ne-mono kuphela i-Bluetooth speakers.

Ingaba i-M4A ekhutshiweyo iya kudlala kwi-iPhone / Android / i-car stereo?

I-MP3 idlala kwihlabathi liphela. I-AAC / M4A idlala kwi-Apple neyona Android ininzi, kubandakanya i-fabrication car stereos ukusuka ku-2014+. I-OGG / Opus ifuna umdlali omtsha kwaye ingasebenzi kwinkqubo edala ye-infotainment. Isixhobo esiphambili-esibekiweyo esithe tyaba sikhetha i-M4A codec ekhuselekileyo yenjongo okhethayo.

MP4

Ifomathi yesikhongozeli seMP4 inokugcina ividiyo, iaudio, imibhalo engezantsi, kunye nemifanekiso kwifayile enye enoxinzelelo oluhle kakhulu.

M4A

I-M4A yifomati yefayile yomsindo esondeleleneyo neMP4. Ibonelela ngoxinzelelo oluphezulu lweaudio ngenkxaso yemetadata, iyenza ilungele usetyenziso olwahlukeneyo.