Guqula AMR ukuba M4A

Guqula Eyakho AMR ukuba M4A amaxwebhu ngokulula

Khetha iifayile zakho

*Iifayile zicinyiwe emva kweeyure ezingama-24

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

Ndiyiguqula njani i-AMR yesandi ibe yi-M4A ngaphandle kokulahlekelwa umgangatho?

Layisha phezulu ifayili AMR kwaye umguquli wethu ukhetha M4A i-codec / uthelekiso lwe-bitrate oluhambelana nomcebo. Isiphelo esingalahliweyo (M4A = WAV / FLAC / ALAC) sigcina isampuli nganye; isiphelo esilahliweyo (M4A = MP3 / AAC / OGG / Opus) simiselwe kwi-192 kbps ebonisa ngaphaya kweendlebe ezininzi.

I-M4A ifayili isebenzisa i-bitrate enjani?

Okumiselweyo 192 kbps ye M4A elahlekile; idlula-ngaphaya (akukho bitrate yokucofa) ye M4A engalahleki. Nciphisa kwi 320 kbps yemveliso yeaudiophile, okanye 96 kbps yelizwi/podcast apho iifayile ezincinci zibalulekile ngakumbi kunenyani kwinqanaba eliphezulu.

Ingaba ukutshintsha ukusuka ku AMR ukuya ku M4A kuya kunyusa ubunjani besandi sam?

Ukuba AMR ilahlekile kwaye M4A ayilahleki (umzekelo MP3 -> WAV), ifayili M4A ayingcono kune AMR — awunakubuyisela ulwazi olusele luthunyelwe. Ukuba AMR ayilahleki kwaye M4A ilahlekile, i-M4A codec iphinda icinezele; kwi-192 kbps oku kucacile kuninzi lwezinto eziquletheyo.

Ingaba i-AMR ukuya kwi-M4A igcina i-ID3 / i-metadata tags?

Ewe — isihloko, umculi, i-albham, unyaka, inani lengoma, kunye nemifanekiso ye-albham efakwe ngaphakathi ifundwa ukusuka kwi AMR kwaye ibhalwe kwi M4A isiqulathi seefayili apho i-M4A ixhasa i-tags (ezizo zonke eziqhelekileyo).

Ndingaguqula izigidi zeefayili AMR zibe M4A?

Ewe - susa isiqulathi seefayili se AMR ngaphakathi kwaye siza kuziqhubekekisa ngokuthe tye. I-Pro inemisebenzi ethe tye eninzi kwaye akukho bukhulu befayili nganye obuphezulu, ngoko ke i-500-file batch igqiba kwimizuzu kunokuba iphele kwimizuzu emininzi.

Ingaba i-M4A iya kugcina inqanaba lesampuli elifanayo njenge-AMR?

Ngokungagqibekanga ewe (48 kHz AMR -> 48 kHz M4A). Ukuba ufuna ukunyusa isampulu yohambelana (umzekelo. 96 kHz -> 44. 1 kHz yokushicilela i CD) ukhetho oluphambili lwesampulu- umyinge uphatha oku nge-polyphase resampler esezingeni eliphezulu.

Ndingazilungisa njani ilizwi kwinyathelo AMR ukuya kwi M4A?

Ewe - ukhetho lokwenza lusebenze ngokuqhelekileyo ubukhulu busebenzisa ukwenziwa ngokuqhelekileyo kwe-ITU-R BS.1770 / EBU R128 kwimveliso ye M4A, ibeka injongo kwi-LUFS -14 (isiqhelo sokusasaza) okanye kwi-LUFS -16 (isiqhelo sepodcast). Isetyenziswa xa kutshintshwa iingoma ngemiphakamo emininzi yolawulo.

Ingaba i-M4A iya kudlala kwi-stereo yemoto yam / i-iPod / i-Sonos?

I-MP3 idlala kwihlabathi liphela. I-AAC idlala kwi-Apple, i-Android, kunye ne-Sonos. I-FLAC idlala kwi-Sonos kunye ne-Android ekutshanje, incinci kakhulu kwi-iPods edala. I-WAV idlala kuyo yonke into kodwa ikhulu. Iinketho eziphambili ziquka isixhobo esimiselweyo kwezi ntlawulo eziqhelekileyo.

Ingaba ifayili yam AMR ifihlakeleyo ngexesha lokuguqulwa?

Ewe — iifayile ezilayishwe phezulu AMR ziqhubekekiswa kubasebenzi abakhethekileyo kwaye zicinywe kwimizuzu. Asiyi kudlala, sigcine, okanye sisebenzise imixholo yesandi. Bona /privacy/ kwifestile yokugcina i-data.

Ithatha ixesha elingakanani ukutshintsha i-AMR yeyure enye ibe yi-M4A?

I-codec efanayo ye-re-mux: 10-30 imizuzwana. Yenza kwakhona ikhowudi kwi-codec eyahlukileyo: ngokuqhelekileyo 10-20% yobude bomthombo, ngoko ke i-1-iyure AMR -> M4A igqiba kwimizuzu engama-6-12 kwinkqubo eqhelekileyo yokuhambisa.

Kutheni i-M4A ifayili inamandla / ipholile kune-AMR imvelaphi?

Akukho tshintsho lokufumana oluzenzekelayo luza kwenzeka ngaphandle kokuba uvule ukhetho lokumisela ngokuqhelekileyo. Ukuba ubona utshintsho lomphakamo, umdlali wakho wesandi okanye ilayibrari yemidiya inokuba isebenzisa ukuphinda udlala ukufumana kwakhona okanye ukulungisa umkhondo ngamnye kukudlala — hayi nathi.

Ndingaguqula i-AMR i-downloads ibe yi-M4A?

Ukuba i-AMR ilayishwe ezantsi ingakhuselwanga (akukho DRM), ewe. Iifayili ezisasazwayo ezifihliweyo nge-DRM (i-Spotify, i-Apple Music) zifihliweyo kwinqanaba le-bit kwaye asikwazi ukuziqhubekekisa. Amacebo e-Bandcamp, i-SoundCloud, kunye nokulinganisa kobuntu buguqulwa kakuhle.