Guqula AMR ukuba M4A

Guqula Eyakho AMR ukuba M4A uxwebhu

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Guqula iifayile ezifikelela kwi-1 GB simahla, abasebenzisi bePro banokuguqula iifayile ezifikelela kwi-100 GB; Bhalisa ngoku

Iyalayisha

Indlela yokuguqula AMR ukuba M4A

Inyathelo 1: Layisha eyakho AMR iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

Inyathelo lesi-2: Cofa iqhosha elithi 'Guqula' ukuze uqalise ukuguqula.

Inyathelo lesi-3: Khuphela i-converted yakho M4A iifayile

AMR ukuba M4A Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ingaba ukuguqulwa kwe-AMR ukuya kwi-M4A kunokuphinda kuphindeke?

Ungaguqula i-M4A kwakhona kwi-AMR kule ndawo. Ukuba nayiphi na ifomati ebandakanyiweyo ilahlekile, i-round-trip ayizukuba yi-bit-perfect nakuba ibonakalayo okanye icacile.

Yintoni umgangatho wemveliso endingalindele ukuba ndiyilindele ukusuka kwi-AMR ukuya kwi-M4A?

Izicwangciso ezimiselweyo zijolise kwi-broadcast / umgangatho we-web - ngokubonakalayo ifana nomcebo kubabukeli abaninzi. Ukusetyenziswa kovimba, khetha ukhetho oluphezulu lomgangatho kwimimiselo yoguquli.

Ingaba ukutshintsha AMR ukuya M4A kukwindawo yesibini yokucinezela okulahlekileyo?

Ewe, kwaye kufanelekile ukucwangcisa. Zonke iifomati zilahlekile, ngoko ke i M4A encoder isebenza kwisandi esisele sidlula kwindlela enye ye psychoacoustic, kwaye izigqibo zayo zidibanisa iseti yokuqala. Kwi 192 kbps okanye ngaphezulu impumelelo ihlala icacile kubaninzi bokuziva. Ukuba une master engalahleki naphi na, ukukopela i M4A ukusuka apho endaweni yoko ikhusela i pass kabini ngokupheleleyo. I-AMR yi-codec yokuthetha ehamba phakathi kwe-4.75 ne-12.2 kbps, eyenza imodeli yomsebenzi wokuthetha womntu kunokuba isebenze kwi-audio epheleleyo. I-M4A igcina i-AAC kwiziganeko ezininzi, okanye i-Apple Lossless (ALAC) xa ivela kwi-rip engalahlekiyo.

Ndingayiphawula i M4A ngeenkcukacha zomculi ne-albhamu?

Ewe, kwaye yinzuzo elungileyo ngaphezulu kwe AMR, eyona ingekho naphi na ethembekileyo ukugcina nayiphi na. M4A ithatha igama, umculi, i-albham, unyaka, inani lengoma kunye nobugcisa bokuqhoboshela okufakwe kwisiqulathi seefayili, ngoko ithala leencwadi lengoma liyifaka ngokuchanekileyo ngaphandle kokuhamba ngesandla. I-M4A igcina i-data ye-meta eninzi ye-iTunes-style, izihloko kunye nomsebenzi womzobi okhuselekileyo, kwaye yifomati yesandi esemthethweni kwisixhobo se-Apple.

Yintoni na i-M4A ifayili?

Isiqulathi seefayili esinomsindo ngaphakathi kwayo, kunokuba umsindo ngokwawo. Lo maleko ongaphezulu yindawo apho ubude, isalathisi sokukhangela kunye ne metadata yefomati echazayo igcinwa khona, ngoko umdlali uyazi ukuba i M4A ihlala ixesha elingakanani phambi kokucoda iframe enye endaweni yokukhangela ifayile yonke ukufumanisa. Oku kuthetha ukuba unikezelo alusoloko lugqiba into engaphakathi: iziqulathi zeefayili ezininzi ezinjalo zivunyelwe ukuba zigcine ngaphezulu kwesinye isifo sesandi, oko kukuthi, iifayile ezimbini M4A zingaziphatha ngokuhlukileyo ngelixa zijonge ngaphaya.

Ingaba kukho ilayisensi edityaniswe ne AMR?

Akukho nto ofuna ukuyicinga. I-codec iquka i-patent pools, kwaye ilayisensi ibekwe ngumthumeli we-decoder - ifowuni, umkhangeli zincwadi, inkqubo yokusebenza - ixesha elide phambi kokuba ifayile ifike kuwe. Yiyo loo nto ifomati ikho kuyo yonke indawo kwihardware, kwaye kutheni i royalty- free alternatives yakhiwa naphi na. Ayitshintshanga nto malunga nokutshintsha ifayile oyinayo, kwaye kumbuzo ophilayo kuphela ukuba uthumeli i-encoder ngokwakho.

Kutheni umculo uthetha ntoni xa uguqulwa?

Kuba enye icala liyi codec yokuthetha kune codec yengoma. Imodelisa umjelo wokuthetha womntu kwaye ishiya konke ngaphandle kwe bandwidth yefowuni, elungileyo kwimemo yokuthetha neyophazamisayo nantoni na enezixhobo kuyo. Ukutshintsha kude nayo akuyi kubuyisela uxinzelelo olulahlekileyo - akufuneki kubekho ukuvulwa kwindawo yokuqala. I-AMR ibulala umculo: i-8 kHz bandwidth yayo isusa konke okungaphezulu kweefrequencies zefowuni, kwaye akukho xabiso lokucofa kwakhona liyibuyisela.

Ingaba i-M4A ifomati ye-Apple kuphela?

Ivela kwi-Apple kwaye ihlala khona. M4A yiyo into eyenza ukuba inkqubo ye-Music ne-iTunes Store ihlale kuyo, nto leyo eyenza ukuba ibe yinkqubo emiselweyo kwisixhobo ngasinye se-Apple kwaye kutheni uluhlu lufunda njenge-Apple — kodwa uluhlu oluchaziweyo phantsi luvulekile, kwaye yonke ifowuni, umkhangeli zincwadi, iyunithi yemoto yomlawuli kunye nomdlali wemidiya ufunda. Akukho nto yokufakela kwaye akukho nkqubo ye-Apple ebandakanyekayo ekuveliseni enye apha. I-M4A yi-MP4 equlethe i-audio kuphela, kwaye yiyo into eyenza i-iTunes, i-Apple Music kunye ne-iPhone Voice Memos app.

Ingaba kukho umda wobungakanani befayili xa uguqula i-AMR ibe yi-M4A?

Uguqulelo olukhululekileyo lunobungakanani obukhawulezayo befayile nganye, emiselwe ngohlobo lwefayile, kwaye iphepha lithetha ukuba xa ifayile ingaphezulu kwayo. Inkqubo ehlawulwayo isusa umda, ngoko iifayile ezinkulu ziyaguqulwa.

Ndingaguqula iifayili ezininzi ze-AMR zibe yi-M4A ngaxeshanye?

Iifayile ezininzi kumsebenzi omnye zifuna inkqubo ehlawulweyo. Ukusetyenziswa okukhululekileyo yifayile enye ngoguqulelo, uguqulelo olunye ngeyure. Kwinkqubo ehlawulweyo ungadibanisa iifayile ezininzi kumsebenzi omnye, emva koko ulayishe impumelelo nganye kwiyo okanye zonke kwi ZIP enye.

Ithini into eyenza ukuba i-AMR yam ifile iguqulwe?

Iifayile ezilayishwe phezulu ziqhubekeka kwiseva yethu yoguqulo, akukho mntu ujonge kuzo, kwaye azinikezelwanga. Ukukhuphela kunye nefayile eguqulweyo zombini zicinywa ngokuzenzekelayo malunga neyure ezili-24 emva koguqulo, eshiya ixesha lokulayisha ezantsi impumelelo. Bona / privacy / kwinkqubo epheleleyo.

Ziziphi iinkqubo ezikwaziyo ukudlala ifayili ye M4A?

M4A idlala kumaqela amaninzi emidlalo, kwii-browser, kunye neelayibrari zemidiya. I-iTunes / i-Apple Music, i-VLC, i-Foobar2000, kunye neenkqubo zemidiya yefowuni ziphatha ngokuzimeleyo.