WMA → M4A

Guqula Eyakho WMA kuya M4A amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

I-Free Plan: 1 Ukushintsha/ihora · Iya ngaphandle komkhawulo →

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

Ukulayisha

Indlela yokuguqula WMA kuya M4A

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

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

Isinyathelo 3: Landa i-version yakho M4A amafayela

WMA kuya M4A Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiguqula kanjani umsindo WMA ube M4A ngaphandle kokulahlekelwa ukhwalithi?

Layisha phezulu ihele WMA futhi umguquli ukhetha i-M4A codec ne-bitrate ukufana nomsuka. Ukungabi naphutha M4A (WAV / FLAC / ALAC) ugcina yonke isampula nge-bit-identical; ukungabi nalutho M4A (MP3 / AAC / OGG / Opus) kumiswa ku-192 kbps okucacile kuma-earphones amaningi. I-WMA ilahlekelwa yiphutha, ebhokisini le-ASF, nge-lossless nezwi elingcono kakhulu elivame ukutholakala. M4A igcina i-AAC emibonweni eminingi, noma i-Apple Lossless (ALAC) uma ivela ku-lossless rip.

Ingabe ukushintsha WMA kuya ku M4A kuyingxenye yesithathu yokucindezela okulahlekile?

Yebo, futhi kufanelekile ukuhlela. Izifomethi zombili ziyi-lossy, ngakho-ke i-M4A encoder isebenza kusuka kumsindo osele udlulele engxenyeni eyodwa ye-psychoacoustic, futhi iziphakamiso zayo zihlanganisa isiqephu sokuqala. Ku-192 kbps noma ngaphezulu, imiphumela ihlala icacile kakhulu. Uma une-lossless master nganoma yikuphi, uku-encoding i-M4A kusuka kulo kunciphisa ukudlula okuphindiwe ngokuphelele.

Kungani ezinye ze WMA zefayela lami zingaguqulwa?

DRM. Iqoqo elincane lamafayela WMA 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. WMA ayixhaswanga cishe kuwo wonke indawo ngaphandle Windows, futhi WMA older amafayela angaba nesi DRM ukuthi ivala ukuguqulwa ngokuphelele.

Yini i-bitrate ongayisebenzisa ihele elivela ku-M4A?

Iphutha ngu-192 kbps ku M4A olahlekelwayo; ukudluliswa-kwe- M4A 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 WMA kuya ku M4A kuzonciphisa ubunjani bomsindo wami?

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

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

Yebo — isihloko, umculi, i-album, unyaka, inani lesiqalo, nesithombe se-album zifundwa kusuka ku WMA isitoreji futhi zibhalwe ku M4A isitoreji lapho ifomu lixhasa amathegi. Zonke izimo ezijwayelekile (MP3, AAC, FLAC, OGG) ziphatha amathegi kahle; i-WAV engaqondakali ayisebenzi. M4A yi MP4 ibhokisi elimaza umsindo kuphela, futhi lokhu iTunes, Apple Music kanye iPhone Voice Memos app kukhiqiza.

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

Yebo — susa isibaya se WMA 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-M4A izogcina isilinganiso esifanayo sesampula njenge-WMA?

Ngephutha yebo — 48 kHz WMA ihlala 48 kHz ku M4A. 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 WMA ku M4A?

Yebo — ukhetho lokujwayelekile-lokujwayelekile lufaka ITU-R BS.1770 / EBU R128 ukujwayelekile ku M4A, lubeka inhloso -14 LUFS (isizinda sokushayela) noma -16 LUFS (isizinda sepodcast). Kuhle uma kuhlanganiswa amabhayisikobho aqeqeshiwe ezingeni ezahlukene.

Ingabe M4A 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-M4A codec elungele i-hardware yakho efanele. M4A igcina i-iTunes-style metadata, amasigaba kanye nemisebenzi yezandla egcwele, futhi iyifomethi yomsindo ovela ezweni lonke kunoma iyiphi idivayisi ye-Apple. M4A ifihla izinto ezimbili ezihlukile kakhulu emuva kolunye ubanzi - lossy AAC kanye lossless ALAC - futhi hhayi-Apple hardware usizo akulingani.

Ingabe ihele lami WMA liyimfihlo ngesikhathi sokuguqulwa ku M4A?

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

Ingabe kuthatha isikhathi esingakanani ukushintsha ihora le-WMA libe M4A?

I-codec efanayo iphinde i-mux: 10 kuya ku-30 imizuzwana. Yenza kabusha i-codec eyahlukileyo: 10 kuya ku-20% yesikhathi somthombo, ngakho-ke ihora WMA → M4A liphela ngemizuzu engu-6 kuya ku-12. Imisebenzi yeqembu ihamba ngokufanayo phakathi kwabasebenzayo ukuze kube nokukhawulela okuningi.

WMA

I-WMA (i-Windows Media Audio) ifomethi yokucindezela umsindo eyakhiwe yi-Microsoft. Ivamise ukusetshenziselwa ukusakaza kanye namasevisi omculo aku-inthanethi.

M4A

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