MP4 → M4R

Guqula Eyakho MP4 ukuba M4R iifayile ngokulula

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Indlela yokuguqula MP4 ukuba M4R

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 M4R iifayile

MP4 ukuba M4R Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyikhupha njani i-audio kwifayili yam MP4 njenge M4R?

Layisha phezulu ifayili MP4 kwaye umguquli ukhupha umsinga wesandi, emva koko uguqula ukukhowuda ku M4R. Akukho sibini sevidiyo esidlulayo - umkhondo obonakalayo ulahliwe ngokukhawuleza ngoko ke ukutywina kukhawuleza kakhulu kune-re-encoding epheleleyo. I-MP4 yi-ISO/IEC 14496-14, imiselwe ngo-2001 kwaye ivela kwibhokisi yobeko lwe-QuickTime efanayo ne-MOV esetyenziswa. I-M4R yitoni yentsimbi ye-iPhone — ifayili ye-AAC eqhelekileyo kwi-MP4 equlethe uluhlu olutshintshiweyo ukuze i-iTunes ifile njengetoni.

Ingaba ukutshintsha MP4 ukuya ku M4R kujikelezo lwesibini lokucinezela okulahlekileyo?

Ewe, kwaye kufanelekile ukucwangcisa. Zonke iifomati zilahlekile, ngoko ke i M4R 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 M4R ukusuka apho endaweni yoko ikhusela i pass kabini ngokupheleleyo. I-MP4 eninzi eluhlaza yi-H.264 yevidiyo enesandi se-AAC; isiqulathi seefayili sigcina ngokusemthethweni i-HEVC, i-AV1 ne-VP9. Umthwalo osebenzayo yi-AAC, i-conventional caped kwimizuzu engama-40, eyona nto ide i-iOS iyamkele.

Ndingayiphawula i M4R ngeenkcukacha zomculi ne-albham?

Ewe, kwaye yimpumelelo epheleleyo ngaphezulu kwe MP4, eyona ingekho naphi na ethembekileyo ukugcina nayiphi na. M4R ithatha isihloko, umculi, i-albham, unyaka, inani lengoma kunye nobugcisa bokuqhoboshela okufakwe kwisiqulathi seefayili, ngoko ithala leencwadi lengoma liyifaka ngokuchanekileyo ngaphandle kokuhamba ngesandla. I-M4R iwela ngqo kuluhlu lweeDanga ze-iOS nge-Finder okanye i-iTunes ngaphandle kokwenziwa kwakhona.

Ithini into ebangela ukuba i-multichannel yesandi iguqulwe kwi MP4 ukuya kwi M4R?

Ijika ezantsi kwi-stereo, kuba M4R ayinayo indlela esebenzayo ye-multichannel. Ukudibanisa ezantsi kusetyenziswa izilinganisi eziqhelekileyo ukuze unxibelelwano lwe-center-channel luhlale lucacileyo kwaye izijikelezi-ndawo zidityanisiwe kwinqanaba eliphantsi. Nantoni na exhomekeke kukubeka isiqhagamshelanisi esikhethekileyo iphela xa oku kwenzeka. I-M4R i-Apple kuphela kwaye ikhawulezisa ubude; nantoni na engaphezulu kwemizuzu engama-40 ilahliwe ngokucothayo yifowuni.

I-M4R ekhutshiweyo isebenzisa i-bitrate yesandi eyiphi?

Ixabiso le-bit elimiselweyo le-lossy M4R yi-192 kbps, ebonisa ngaphaya iingoma. Ungayicima i-320 kbps (audiophile) okanye i-96-128 kbps (ulizwi / ipodcast / ifayili encinci). Ixabiso le-bit eliphantsi livela kukhetho oluphambili phambi kokuba ucofe uguqule.

Ingaba ndiya kulahlekelwa umgangatho wesandi xa ndisuka kwi MP4 ukuya kwi M4R?

Ukuba M4R ayilahleki (WAV, FLAC), yonke isampuli igcinwa ngokuchanekileyo. Ukuba M4R ilahlekile (MP3, AAC, OGG, Opus), i M4R codec iphinde icinezele umbhalo ovela kumbhalo - kwi-192 kbps isiphumo sicacile kuzo zonke izinto eziqukayo. Ukuya olungalahleki → olungalahleki akuyi kubuyisela inkcukacha esele zilahlekile.

Ingaba i-M4R yesandi igcina umyinge wesikhokelo ongaphambili?

Ngokungagqibekanga ewe — 48 kHz yesandi kwi MP4 yakho ihlala 48 kHz kwi M4R imveliso. Ukukhupha i-CD okanye ukulungelelanisa umdlali ovela kwixesha elidlulileyo ungakhupha isampuli ukuya kwi-44.1 kHz ngesampula-yexabiso eliphantsi; isampuli ephindaphindwayo iphezulu kwi-SoX-grade.

Ndingayikhupha isandi ukusuka kwiifayili ezininzi MP4 ukuya kwi M4R kwiqela elinye?

Ewe - shiya isiqulathi seefayili se MP4 iifayili kwaye sikhuphe umsindo ngokuthe tye. Abasebenzisi abaphezulu bafumana abasebenza ngokuthe tye abaninzi; kwifayile ye-50 iqela lento le yinto eyahlukileyo phakathi kwemizuzu emibini kunye nemizuzu elishumi elinesibini.

Ingaba i M4R izakuphawulwa ngesihloko / umculi / i-metadata ye-albham?

Ukuba i MP4 ithatha isithuba okanye i-metadata yokuhamba, sikopa isihloko / umculi / i-albham yemihlaba kwi M4R isiqwenga. Ukuba akunjalo, i M4R iza ngaphandle ingaphawulwanga - sebenzisa umhleli wephetshana elichazayo (Mp3tag, Picard) emva korhwebo ngaphandle lophawulo oluninzi.

Ithatha ixesha elingakanani ukutsala i-M4R yesandi ukusuka kwi-1-iyure i-MP4?

I-audio demux + encoding ikhawuleza - iqhelekileyo 5 ukuya kwi 15% yobude bomthombo. I 1- iyure MP4 → M4R igqiba kwi 3 ukuya kwi 9 imizuzwana kwindlela eqhelekileyo yokuhambisa; Uthelekiso oluphezulu lukhupha oku ngaphezulu kwimisebenzi yeqela.

Ndingayikhupha icala le-MP4 lesandi njenge-M4R?

Ayikho kule sixhobo ngokuthe ngqo — khupha isandi esipheleleyo njenge M4R, emva koko sebenzisa /audio-trim/ okanye /audio-cutter/ ukucima icandelo. Umendo wenyathelo elinye uhlala ukhawuleza kunenkqubo edityanisweyo kwaye unika ulawulo oluchanekileyo lwe-waveform-level.

Ingaba ifayili yam MP4 ifihlakele ngexesha lokukhupha isandi?

Ewe - imodeli yobumfihlo efanayo neyokuguqulwa ngalinye: abaqeshi ababekwe ngokukodwa, akukho kuhlaziyo lomuntu, ukucinywa okuzenzekelayo ngaphakathi kwemizuzu yokuphela. Ifestile yokugcina epheleleyo ikwi /privacy/.