AAC → M4A

Guqula Eyakho AAC ukuba M4A iifayile ngokulula

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Indlela yokuguqula AAC ukuba M4A

Inyathelo 1: Layisha eyakho AAC 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

AAC ukuba M4A Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyiguqula njani i-AAC yesandi kwi-M4A ngaphandle kokulahlekelwa umgangatho?

Layisha phezulu ifayile AAC kwaye umguquli ukhetha i M4A codec ne-bitrate ukuhambelana nomcebo. Ukungabikho kolahleko M4A (WAV / FLAC / ALAC) ugcina yonke isampuli ye-bit- identical; ukungabikho kolahleko M4A (MP3 / AAC / OGG / Opus) okumiselweyo ku 192 kbps ebonisa ngaphaya kweendlebe ezininzi. I-AAC ilahlekile kodwa isebenza kakuhle kune-MP3, kwaye iphatha ukuya kuthi ga kwi-48 yeendlela eziqhelekileyo kunokuba ifakwe ibhotile kuyilo lwestereo. I-M4A igcina i-AAC kwiziganeko ezininzi, okanye i-Apple Lossless (ALAC) xa ivela kwi-rip engalahlekiyo.

Ingaba ukutshintsha AAC ukuya ku M4A kujikelezo lwesibini lokucinezela okulahlekileyo?

Ewe, kwaye kufanelekile ukucwangcisa. Zonke iifomati zilahlekile, ngoko ke i M4A encoder isebenza kwisandi esisele sidlula kwindlela enye ye psychoacoustic, kwaye izigqibo zayo zidibanisa iseti yokuqala. Kwi 192 kbps okanye ngaphezulu isiphumo sihlala sicacile kubaninzi bokuziva. Ukuba une master engalahleki naphi na, ukukopela i M4A ukusuka apho endaweni yoko ikhusela i pass kabini ngokupheleleyo.

I-bitrate yefayili ephumayo M4A iza kusetyenziswa ntoni?

Okungagqibekanga ku 192 kbps kulahleko M4A; dlula- kwi-lossless M4A. Nciphisa ku 320 kbps ku audiophile okanye 96 kbps kulizwi / ipodcast. Ukhetho lurhweba ubungakanani befayile ngokuchasene nobuxoki obuvakalayo; ngaphantsi kwe 96 kbps ulahleko lwee-artefacts zibonakala kwingoma.

Ingaba ukudlula kwi AAC ukuya kwi M4A kuya kunyusa ubunjani besandi sam?

Ukuba AAC ilahlekile kwaye M4A ayilahleki (umzekelo MP3 → WAV), i M4A ayingcono kune AAC — awunakubuyisela ulwazi olusele lulahlekile. Ukuba AAC ayilahleki kwaye M4A ayilahleki, i M4A codec iphinda icinezele; kwi-192 kbps isiphumo sicacile kuninzi lwezinto eziquletheyo.

Ingaba umguquli AAC ukuya ku M4A ugcina i-ID3 / i-metadata tags?

Ewe - isihloko, umculi, i-albham, unyaka, inani lengoma, kunye nemifanekiso ye-albham ifundwa kwi AAC isiqulathi seefayili kwaye ibhalwe kwi M4A isiqulathi seefayili apho ifomati ixhasa amaphetshana. Zonke izicelo eziqhelekileyo (MP3, AAC, FLAC, OGG) ziphatha amaphetshana kakuhle; i-raw WAV ayisebenzi. I-M4A yi-MP4 equlethe i-audio kuphela, kwaye yiyo into eyenza i-iTunes, i-Apple Music kunye ne-iPhone Voice Memos app.

Ndingaguqula izigidi zeefayili AAC zibe M4A?

Ewe - shiya isiqulathi seefayili se AAC iifayile ngaphakathi kwaye siza kuziqhubekekisa ngokuthe tye. I-Premium inemisebenzi emininzi ethe tye kwaye akukho mda wobungakanani befayili nganye, ngoko ke i-500-file batch igqiba kwimizuzu kunokuba i-10 yemizuzu.

Ingaba i M4A iyagcina ixabiso lesampuli elifanayo njenge AAC?

Ngokungagqibekanga ewe — 48 kHz AAC ihlala 48 kHz kwi M4A. Ukuba ufuna ukunyusa uvavanyo ukuze ulungelelanise (96 kHz → 44.1 kHz ukukhuphela iCD), ukhetho lwesampulu-yesantya lusebenzisa uvavanyo oluphezulu lomgangatho kwindlela efanayo yokugqitha kokukhowuda.

Ndingazilungisa njani i-loudness xa ndiguqula AAC ukuya ku M4A?

Ewe - ukhetho lokwenza isantya sisebenze ngokuqhelekileyo lusebenzisa ITU-R BS.1770 / EBU R128 ukwenziwa sebenze ngokuqhelekileyo kwi M4A, lujolise kwi -14 LUFS (umgangatho wokudlulisa) okanye -16 LUFS (umgangatho wepodcast). Isetyenziswa xa kuqhutywa iingoma ezimasterwe kumanqanaba ahlukeneyo.

Ingaba i M4A yam iya kudlala kwi-car stereo, i-iPod, ne-Sonos?

I-MP3 idlala naphi na. I-AAC idlala kwi-Apple, i-Android, ne-Sonos. I-FLAC idlala kwi-Sonos ne-Android kodwa ayisebenzi kwi-iPods edala. I-WAV idlala naphi na kodwa ikhulu. Isixhobo esiphambili esimiselweyo esikhupha i-codec M4A esilungele i-hardware yakho emiselweyo. I-M4A igcina i-data ye-meta eninzi ye-iTunes-style, izihloko kunye nomsebenzi womzobi okhuselekileyo, kwaye yifomati yesandi esemthethweni kwisixhobo se-Apple. M4A ifihla izinto ezimbini ezihlukileyo ezisemva kwesinye isiqalo — i-AAC elahlekile kunye ne-ALAC engalahlekiyo — kwaye uxhaso lwehardware lwe-Apple olungahambelaniyo.

Ingaba i-AAC yam ifayile ifihlakeleyo ngexesha liguqulwa kwi-M4A?

Ewe — iifayili ezilayishwe phezulu AAC ziqhubekeka kubasebenzi abamiselweyo kwaye zicinywe ngaphakathi kwemizuzu. Asiyi kudlala kwakhona, sigcine ixesha elide, okanye sinikezele kwizinto eziqulethe isandi. Ifestile yokugcina epheleleyo ikwi /privacy/.

Ithatha ixesha elingakanani ukutshintsha i-1-iyure AAC ukuya kwi-M4A?

I-codec efanayo ye-re-mux: 10 ukuya kwimizuzu engama-30. Yenza kwakhona ikhowudi kwi-codec eyahlukileyo: iqhelekileyo 10 ukuya kwimizuzu engama-20% yobude bomthombo, ngoko ke i 1-yure AAC → M4A igqiba kwimizuzu engama-6 ukuya kwezingama-12. Imisebenzi yeqela ihamba ngokufanayo phakathi kwabasebenzisi ukuze ikhawuleze ngakumbi.

Kutheni le nto i M4A inamandla okanye ipholile kunesiqhagamsheli se AAC?

Akukho tshintsho lokufumana oluzenzekelayo luza kwenzeka ngaphandle kokuba usebenze ukhetho lokugqiba. Ukuba ubona utshintsho lomphakamo, umdlali wakho wesandi okanye ithala leencwadi lemithombo yeendaba linokuthi lisebenzise iReplayGain okanye ukulungelelanisa umkhondo ngamnye kumdlalo — hayi kuthi. Sukwenza oku ukuze uzive i M4A amanqanaba asemthethweni.