MP4 → WMA

Guqula Eyakho MP4 ukuba WMA iifayile ngokulula

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Iyalayisha

Indlela yokuguqula MP4 ukuba WMA

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 WMA iifayile

MP4 ukuba WMA Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyikhupha njani i-audio kwifayili yam MP4 njenge WMA?

Layisha phezulu ifayili MP4 kwaye umguquli ukhupha umsinga wesandi, emva koko uguqula ikhowudi ibe yi WMA. Akukho sibini sevidiyo esidlulayo - irekhodi elibonakalayo lilahliwe ngokuzenzekelayo ngoko ke ukutywina kukhawuleza kakhulu kune-encoding epheleleyo. I-MP4 yi-ISO/IEC 14496-14, imiselwe ngo-2001 kwaye ivela kwibhokisi yobeko lwe-QuickTime efanayo ne-MOV esetyenziswa. I-WMA yiWindows Media Audio, iMicrosoft's answer to MP3, yasungulwa ngo-1999 kwaye yadityaniswa neWindows nganye efakwe kulo nyaka.

Ingaba ukutshintsha MP4 ukuya ku WMA kujikelezo lwesibini lokucinezela okulahlekileyo?

Ewe, kwaye kufanelekile ukucwangcisa. Zonke iifomati zilahlekile, ngoko ke i WMA 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 WMA ukusuka apho endaweni yoko ikhusela i pass kabini ngokupheleleyo. I-MP4 eninzi eluhlaza yi-H.264 yevidiyo enesandi se-AAC; isiqulathi sigcina ngokusemthethweni i-HEVC, i-AV1 ne-VP9. I-WMA ilahlekile ngokumiselweyo, kwi-ASF equlethe, eneempawu ezingalahlekiyo kunye nelizwi elilungelelanisiweyo elihlala lichaphazela.

Ndingayiphawula i WMA ngeenkcukacha zomculi ne-albham?

Ewe, kwaye yimpumelelo epheleleyo ngaphezulu kwe MP4, eyona ingekho naphi na ethembekileyo ukugcina nayiphi na. WMA ithatha isihloko, umculi, i-albham, unyaka, inani lengoma kunye nobugcisa bokuqhoboshela okufakwe kwisiqulathi seefayili, ngoko ithala leencwadi lengoma liyifaka ngokuchanekileyo ngaphandle kokuhamba ngesandla. I-WMA icinezelwe kakuhle kune-MP3 encoders yexesha elidlulileyo kwaye ihlala ifundeka ngu-Windows Media Player kunye nee-PlaysForSure ngaphambili.

Ingaba i WMA iyadlala kwimoto yam okanye kwizixhobo ezidala?

Ihlala ingasebenzi. MP4 ikhowudiwe yiyo yonke into, kubandakanya iyunithi yemoto yomlomo kunye nabadlali abadala; WMA ifuna isoftware eyaziyo i-codec, eyona hardware ihlala ingekho. Ukuba indawo efanelekileyo yimoto yestereo okanye umdlali ophathekayo, oku kukholelwa kakhulu ukuba uhlala kwi MP4. WMA ayixhaswanga phantse naphi na ngaphandle Windows, kwaye WMA older iifayili zingathabatha DRM ethintela uguqulo ngokupheleleyo.

I-WMA ekhutshiweyo isebenzisa i-bitrate yesandi ethini?

I-bitrate emiselweyo ye-lossy WMA yi-192 kbps, ebonisa ngaphaya kwengoma. Ungayicima i-320 kbps (audiophile) okanye i-96-128 kbps (ilizwi / ipodcast / ifayili encinci). I-bitrate esuka ezantsi ivela kwiinketho eziphambili phambi kokuba ucofe uguqule.

Ingaba ndiya kulahlekelwa umgangatho wesandi xa ndisuka kwi-MP4 ukuya kwi-WMA?

Ukuba WMA ayilahleki (WAV, FLAC), isampuli nganye igcinwa ngokuchanekileyo. Ukuba WMA ilahlekile (MP3, AAC, OGG, Opus), i-WMA codec iphinda icinezele umbhalo wesandi - kwi-192 kbps isiphumo sicacile kuzo zonke iziqulatho. Ukuya kwi-lossy → ayilahleki akuzukubuyisela iinkcukacha ezisele zilahlekile.

Ingaba i-WMA yesandi igcina i-sample rate yangaphambili?

Ngokungagqibekanga ewe — 48 kHz yesandi kwi MP4 yakho ihlala i-48 kHz kwi-WMA yemveliso. Ukukhupha i-CD okanye ukulungelelanisa umdlali okhoyo ungakhupha i-sample ukuya kwi-44.1 kHz nge-sample-rate dropdown; i-resampler ikwi-SoX-grade esezingeni eliphezulu.

Ndingayikhupha i-audio kwiifayili ezininzi MP4 kwi WMA kwiqela elinye?

Ewe — susa isiqulathi seefayili ze MP4 kwaye sikhuphe isandi ngokuthe tye. Abasebenzisi abaphezulu bafumana abasebenzi abathe tye abaninzi; kwifayili ye-50-batch le yinto eyahlukileyo phakathi kwemizuzu emibini kunye nemizuzu emihlanu.

Ingaba i-WMA iya kuphawulwa ngesihloko / umculi / i-metadata ye-albham?

Ukuba i MP4 ithatha isahluko okanye i-metadata yokuhamba, siyakopa isihloko / umculi / imihlaba ye-albham kwi WMA isiqulathi seefayili. Ukuba akunjalo, i WMA iza ngaphandle ingaphawulwanga — sebenzisa umhleli we-tag (Mp3tag, Picard) emva korhwebo ngaphandle lokufaka i-tag eninzi.

Ithatha ixesha elingakanani ukutsala i-WMA yesandi ukusuka kwi-MP4 yeyure?

I-audio demux + encode ikhawuleza - iqhelekileyo 5 ukuya kwi 15% yobude bomthombo. I-1-iyure MP4 → WMA igqiba kwimizuzu emithathu ukuya kwi 9 kwindlela eqhelekileyo yokuhambisa; i-Premium parallelism icima oku ngaphezulu kwimisebenzi yeqela.

Ndingayikhupha icala le-MP4 yesandi njenge-WMA?

Akukho kule sixhobo ngokuthe ngqo — khupha isandi esipheleleyo njenge WMA, emva koko sebenzisa /audio-trim/ okanye /audio-cutter/ ukucima icandelo. Umendo wenyathelo elinye uhlala ukhawuleza kunenkqubo edityanisweyo kwaye ukunika ulawulo oluchanekileyo lwenqanaba le-waveform.

Ingaba ifayili yam MP4 ifihlakeleyo ngexesha lokukhupha isandi?

Ewe - imodeli yobumfihlo efanayo neyokuguqulwa ngasinye: abasebenzi ababekwe ngokuzimeleyo, akukho hlaziyo lomuntu, ukucinywa okuzenzekelayo ngaphakathi kwemizuzu yokugqitywa. Ifestile yokugcina epheleleyo ikwi /privacy/.

MP4

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

WMA

I-WMA (iWindows Media Audio) yifomathi yocinezelo lomsindo eyenziwe nguMicrosoft. Isetyenziswa ngokuqhelekileyo ukusasaza kunye neenkonzo zomculo kwi-intanethi.