MP4 → FLAC

Hayi, kwaye ixabiso lokuba mnyama: akukho nto ingayenza. I MP4 sele ishiye inkcukacha ngexesha lokushicilela kwayo, kwaye ukujika okuseleyo kwi FLAC engalahliyo igcina ngokuchanekileyo oko - akukho ngaphezulu. Ifayile ifumana amaxesha amaninzi amakhulu kwaye ithetha ngokufanayo. Ihlala ihamba kakuhle phambi kohlela, kuba FLAC ayizukongeza udidi lwesibini lweeartefacts xa urhweba ngaphandle. I-FLAC ikunika ukuthembeka kwe-WAV kwisiqingatha sobungakanani, ngee-tags ze-metadata ezifanelekileyo kunye nomsebenzi womnatha ofakwe ngaphakathi, oko kukuthi, ilawula iilayibrari zengoma ezingalahlekiyo. I-MP4 ixhasa kuphela ifomati enye ethandwayo yesihloko esingaphantsi (mov_text), nesandi esininzi esingenakuthembeka ngaphandle kwabadlali be-desktop.

Ewe, kwaye yimpumelelo epheleleyo ngaphezulu kwe MP4, eyona ingekho naphi na ethembekileyo ukugcina nayiphi na. FLAC ithatha isihloko, umculi, i-albham, unyaka, inani lengoma kunye nobugcisa bokuqhoboshela okufakwe kwisiqulathi seefayili, ngoko ithala leencwadi lengoma liyifaka ngokuchanekileyo ngaphandle kokuhamba ngesandla.

Ihlala ingasebenzi. MP4 ikhowudiwe yiyo yonke into, kubandakanya iyunithi yemoto yomlomo kunye nabadlali abadala; FLAC ifuna isoftware eyaziyo i-codec, eyona hardware ihlala ingekho. Ukuba indawo efanelekileyo yimoto yestereo okanye umdlali ophathekayo, oku kukholelwa kakhulu ukuba uhlala kwi MP4. FLAC ihlala iphindaphindwa amaxesha amaninzi ngaphezu kwefayile elungileyo elahlekile, kwaye inkqubo yendalo yeApple yadibanisa kuphela inkxaso ngoku kwaye ngokungxamisekileyo.

Ixabiso le-bit elimiselweyo le-lossy FLAC 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.

Ukuba FLAC ayilahleki (WAV, FLAC), yonke isampuli igcinwa ngokuchanekileyo. Ukuba FLAC ilahlekile (MP3, AAC, OGG, Opus), i FLAC codec iphinde icinezele umbhalo ovela kumbhalo - kwi-192 kbps isiphumo sicacile kuzo zonke izinto eziqukayo. Ukuya olungalahleki → olungalahleki akuyi kubuyisela inkcukacha esele zilahlekile. I-FLAC isebenzisa umbono othe tyaba kunye nokukhowuda kweRice ukufezekisa malunga ne-50-60% yobungakanani obuqhelekileyo ngelixa ikhupha ikhowudi kwakhona kwi-PCM efana ne-bit.

Ngokungagqibekanga ewe — 48 kHz yesandi kwi MP4 yakho ihlala 48 kHz kwi FLAC 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.

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.

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

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

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

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