M4A → FLAC

Guqula Eyakho M4A kuya FLAC amafayela kalula

Khetha amafayela akho

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Ukulayisha

Indlela yokuguqula M4A kuya FLAC

Isinyathelo 1: Layisha eyakho M4A amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

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

Isinyathelo 3: Landa i-version yakho FLAC amafayela

M4A kuya FLAC Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiguqula kanjani umsindo M4A ube FLAC ngaphandle kokulahlekelwa ukhwalithi?

Layisha phezulu ihele M4A futhi umguquli ukhetha i-FLAC codec ne-bitrate ukufana nomsuka. Ukungabi naphutha FLAC (WAV / FLAC / ALAC) ugcina yonke isampula nge-bit-identical; ukungabi nalutho FLAC (MP3 / AAC / OGG / Opus) kumiswa ku-192 kbps okucacile kuma-earphones amaningi. M4A igcina i-AAC emibonweni eminingi, noma i-Apple Lossless (ALAC) uma ivela ku-lossless rip. I-FLAC isebenzisa ukubikezela okuqondile kanye nokuhlelwa kwe-Rice ukufinyelela cishe ku-50-60% wesayizi yangempela ngesikhathi sokuhlelwa emuva kwe-PCM efana ne-bit.

Ingabe ukushintsha M4A kuya ku FLAC kuzothuthukisa ukhwalithi yomsindo?

Akunalutho, futhi kufanelekile ukuba kucace: akukho okuzokwenzeka. I M4A idlulele i-detail ngesikhathi sokuqothula kwayo okujwayelekile, futhi ukubopha okushiwo ku FLAC ongeke ulahlekelwa yilutho kugcina lokho - akukho okuningi. Ihele lithola izikhathi eziningi ezikhulu futhi lizwakala lifana. Kukhona ukunyakaza okulungile ngaphambi kokuhlela, ngoba FLAC ngeke ihlanganise isizukulwane sesithathu sezinto ezibonakalayo uma ukhipha. I-FLAC ikunikeza ukuthembeka kwe-WAV kungxenyekazi yesayizi, nge-metadata efanele kanye ne-artwork efakwe, ngakho-ke ilawula ama-library omculo angeke alahlekelwa. M4A ifihla izinto ezimbili ezihlukile kakhulu emuva kolunye ubanzi - lossy AAC kanye lossless ALAC - futhi hhayi-Apple hardware usizo akulingani.

Kungani ezinye ze M4A zefayela lami zingaguqulwa?

DRM. Iqoqo elincane lamafayela M4A libhalwe ngokufihlakele yisitolo noma isofthiwe eyenza, futhi umsindo obhalwe ngokufihlakele awukwazi ukukhishwa yinoma iyiphi i-convertor. Noma yini oyidingayo, orekhodiwe, noma othengiswe ngaphandle kokuvikelwa uguqulwa ngokuvamile; ukuthengiswa kwelayisense akuzokwenza.

Ingabe i-FLAC izodlala emoto yami noma ku-hardware edala?

Ngokuvamile akunjalo. M4A i-decoded yinoma yini, kufaka phakathi izimoto eziphezulu nezidlali ezikhulu; FLAC idinga isofthiwe eyazi i-codec, esizohlala i-hardware ehlala ikhona. Uma indawo esiya kuyo imoto ye-stereo noma umdlali ophathekayo, lokhu kuyisinqumo esiqinile sokuhlala ku M4A. FLAC akazange ashintshe, futhi Apple's ecosystem kuphela engeza insizakalo okwamanje futhi grudgingly.

Yini i-bitrate ongayisebenzisa ihele elivela ku-FLAC?

Iphutha ngu-192 kbps ku FLAC olahlekelwayo; ukudluliswa-kwe- FLAC okungalahleki. Nciphisa ku-320 kbps ku-audiophile noma ku-96 kbps ku-voice / podcast. Ukhetho lushintsha ubukhulu behele ku-audible fidelity; ngaphansi kuka-96 kbps olahlekelwayo, ama-artefacts abonakala emculo.

Ingabe ukusuka ku M4A kuya ku FLAC kuzonciphisa ubunjani bomsindo wami?

Uma M4A ilahlekelwa futhi FLAC ayilahleki (isibonelo MP3 → WAV), FLAC ayingcono kuna M4A — awukwazi ukubuyisela imininingwane elahlekile. Uma M4A ilahlekelwa futhi FLAC ayilahleki, i-FLAC codec icindezela futhi; ku-192 kbps imiphumela icacile kunoma iyiphi ingxenye.

Ingabe i-M4A kuya ku-FLAC igcina amathegi we-ID3 / metadata?

Yebo — isihloko, umculi, i-album, unyaka, inani lesiqalo, nesithombe se-album zifundwa kusuka ku M4A isitoreji futhi zibhalwe ku FLAC isitoreji lapho ifomu lixhasa amathegi. Zonke izimo ezijwayelekile (MP3, AAC, FLAC, OGG) ziphatha amathegi kahle; i-WAV engaqondakali ayisebenzi. FLAC yi-Free Lossless Audio Codec, ifomethi evulekile kusukela ngo-2001 ecindezela ngaphandle kokususa isampula eyodwa.

Ingabe ngingenza i-batch yokuguqula amahele angama-M4A abe FLAC?

Yebo — susa isibaya se M4A amafayela ngaphakathi futhi sizoziphatha ngokufanayo. I-Premium inemisebenzi eminingi efana ne-parallel futhi akukho lutho oluphezulu lwesayizi yefayela ngalinye, ngakho-ke i-500-file batch iphele ngemizuzu endaweni yamahora angama-10.

Ingabe i-FLAC izogcina isilinganiso esifanayo sesampula njenge-M4A?

Ngephutha yebo — 48 kHz M4A ihlala 48 kHz ku FLAC. Uma ufuna ukusatshalaliswa ngezansi ukuze kusebenze (96 kHz → 44.1 kHz ukushaya i-CD), isinqumo sesampula-sayizi sifaka ukusatshalaliswa okusezingeni eliphezulu kuleyo ngxenye yokungenisa ikhodi.

Ingabe ngizolungisa umsindo uma ngiguqula M4A ku FLAC?

Yebo — ukhetho lokujwayelekile-lokujwayelekile lufaka ITU-R BS.1770 / EBU R128 ukujwayelekile ku FLAC, lubeka inhloso -14 LUFS (isizinda sokushayela) noma -16 LUFS (isizinda sepodcast). Kuhle uma kuhlanganiswa amabhayisikobho aqeqeshiwe ezingeni ezahlukene.

Ingabe FLAC yami izodlala ku-car stereo, iPod, ne-Sonos?

MP3 idlala kuwo wonke amadivayisi. I-AAC idlala ku-Apple, ku-Android, ne-Sonos. I-FLAC idlala ku-Sonos ne-Android kodwa ayikho ku-iPods edlule. I-WAV idlala kuwo wonke amadivayisi kodwa inamandla amakhulu. Imenyu yokudonsa yedivayisi ethuthukisiwe ikhetha i-FLAC codec elungele i-hardware yakho efanele.

Ingabe ihele lami M4A liyimfihlo ngesikhathi sokuguqulwa ku FLAC?

Yebo — amafayela alayishwe phezulu M4A aqhubekelwa phambili emisebenzini ehlukanisiwe futhi acishwe ngaphakathi kwemizuzu. Asikwazi ukudlala emuva, ukugcina isikhathi eside, noma ukuhlanganisa okuqukethwe kwesandi. Ifasitela lokugcinwa okuphelele likhona ku /privacy/.

M4A

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

FLAC

I-FLAC inikeza ukucindezelwa komsindo okungenakulahlekelwa, kunciphisa usayizi wefayela ngenkathi kulondolozwa ikhwalithi yomsindo yokuqala engu-100%.