AC3 → AMR

Guqula Eyakho AC3 kuya AMR amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

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Ukulayisha

Indlela yokuguqula AC3 kuya AMR

Isinyathelo 1: Layisha eyakho AC3 amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho AMR amafayela

AC3 kuya AMR Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyiguqula kanjani i-AC3 yomsindo ibe yi-AMR ngaphandle kokulahlekelwa ukhwalithi?

Layisha phezulu ihele AC3 futhi umguquli ukhetha i AMR codec ne-bitrate ukufana nomsuka. Ukungabi nalutho AMR (WAV / FLAC / ALAC) ugcina yonke isampula nge-bit-identical; ukungabi nalutho AMR (MP3 / AAC / OGG / Opus) iphutha ku-192 kbps ecacile kulezi zindlebe eziningi. AC-3 yisandi esiningi esingenalutho, sivame u-5.1 ku-384 noma 448 kbps, nedatha yemeta yokuxoxa nokuhlanganiswa ngezansi. I-AMR iyi-narrowband speech codec esebenza phakathi kuka-4.75 no-12.2 kbps, emodela i-human vocal tract ngaphezu kwe-audio spectrum ephelele.

Ingabe ukushintsha AC3 kuya ku AMR kuyingxenye yesithathu yokucindezela okulahlekile?

Yebo, futhi kufanelekile ukuhlela. Izifomethi zombili ziyi-lossy, ngakho-ke i-AMR encoder isebenza kusuka kumsindo osele udlulele engxenyeni eyodwa ye-psychoacoustic, futhi iziphakamiso zayo zihlanganisa isiqephu sokuqala. Ku-192 kbps noma ngaphezulu, imiphumela ihlala icacile kakhulu. Uma une-lossless master nganoma yikuphi, ukukopisha i-AMR kusuka kulo kunciphisa ukudluliswa okuphindiwe ngokuphelele.

Yini ekwenzeke kumsindo othile uma uguqula AC3 ku AMR?

Ihlolwe phansi ku-stereo, ngoba AMR ayinayo indlela esebenzayo ye-multichannel. Ukuxuba okuphansi kusetshenziswa izilinganiso ezijwayelekile ukuze umhlangano we-channel ephakathi uhlale ucacile futhi izingqimba zixhunywe ku-level ephansi. Noma yini esekelwe ku-channel ehlukile ihamba lapho lokhu kwenziwa. I-AMR ibulala umculo: i-8 kHz bandwidth yayo isusa konke okuphezulu kwe-frequency yefoni, futhi akukho inani lokuphindeka kokucofa liyibuyisela emuva.

Kungani umculo uzwakala ubuhlungu kulo mguquko?

Ngenxa yokuthi ingxenye eyodwa iyi-codec yokuxoxa hhayi i-codec yomculo. Imodelisa i-human vocal tract futhi isusa konke okungaphandle kwe-bandwidth yefoni, okulungile ku-voice memo futhi kulahlekile kunoma yini enezithuluzi ngaphakathi. Ukushintshana eduze kwayo akukwazi ukubuyisela izifremu ezilahlekile — azikhombisile endaweni yokuqala. AC-3 ayisebenzi kahle ngokujwayelekile okusha futhi ayivunyelwe yiziphequluli, amafoni noma abadlali abaningi be-web ngaphandle kokuxhuma phezulu kwe-stereo.

Yini i-bitrate ezoba yihele elitholakele AMR lisebenzisa?

Iphutha lingu-192 kbps ku-lossy AMR; dlula-nge-lossless AMR. Yisuse ku-320 kbps ku-audiophile noma ku-96 kbps ku-voice / podcast. Ukhetho lushintsha ubukhulu behele ku-audible fidelity; ngaphansi kwe-96 kbps i-lossy artifacts ibonakale kumculo.

Ingabe ukudlula kusuka ku AC3 kuya ku AMR kuzonciphisa ukhwalithi yomsindo wami?

Uma AC3 ilahlekelwa yinto futhi AMR ayilahlekelwanga (isibonelo MP3 → WAV), AMR ayingcono kuna AC3 — awukwazi ukubuyisela imininingwane elahlekile. Uma AC3 ilahlekelwa yinto futhi AMR ayilahlekelwanga, AMR i-codec icindezela kabusha; ku-192 kbps imiphumela icacile kuningi kwezithameli.

Ingabe i-AC3 kuya ku-AMR iguqula igcina ID3 / metadata tags?

Yebo — isisihloko, umculi, i-album, unyaka, inani le-track, kanye ne-album art zifundwa kusuka ku AC3 ibhokisi futhi zibhalwe ku AMR ibhokisi lapho ifomu lixhasa iziphawuli. Zonke izinhloso ezijwayelekile (MP3, AAC, FLAC, OGG) ziphatha iziphawuli kahle; i-WAV emnyama ayisebenzi. I-AMR iyi-Adaptive Multi-Rate, i-codec yokukhuluma i-3GPP ejwayelekile yezingcingo zokukhuluma ze-GSM nezinhlelo zokurekhoda amagama ezimoto.

Ingabe ngingakwazi ukushintsha amahele amakhulu AC3 ku AMR?

Yebo - khipha isibaya se AC3 amafayela ngaphakathi futhi sizoziphatha ngokuhambisana. I-Premium inemisebenzi eminingi ehambisanayo futhi akukho lutho oluphezulu lwesayizi yefayela ngalinye, ngakho-ke i-500-file batch iqedela imizuzu endaweni yamahora angama-10.

Ingabe i-AMR izogcina isilinganiso esifanayo sesampula njenge-AC3?

Ngokungajwayelekile yebo — 48 kHz AC3 ihlala 48 kHz ku AMR. Uma ufuna ukusatshalaliswa ngezansi ukuze kusebenze (96 kHz → 44.1 kHz ukuthwebula i-CD), isampula-rate option ifaka ukusatshalaliswa okusezingeni eliphezulu kulowo mkhawulo wokucofoza.

Ingabe ngikwazi ukushintsha umsindo uma ngiguqula AC3 kuya ku AMR?

Yebo — i-loudness-normalize option ifaka i-ITU-R BS.1770 / EBU R128 normalization ku-AMR, idinga -14 LUFS (isilinganiso sokusakaza) noma -16 LUFS (isilinganiso sepodcast). Kuhle uma uhlela ama-tracks amastered kuma-levels ahlukene.

Ingabe AMR yami izodlala ku-car stereo, iPod, ne-Sonos?

MP3 idlala kuwo wonke amathuluzi. AAC idlala ku-Apple, ku-Android, ne-Sonos. FLAC idlala ku-Sonos ne-Android kodwa hhayi ku-iPods ezidala. WAV idlala kuwo wonke amathuluzi kodwa ikhulu. Idivayisi ethuthukisiwe-isethelwe ngaphambili ikhetha i-AMR codec elungele i-hardware yakho efanele. I-AMR yenza ukurekhodwa kwezwi kube ncane kakhulu - ihora lokuxoxa lifaka ama-megabytes ambalwa - futhi yilokho okunye amafoni amaningi aqhubeka nokurekhoda ukufona.

Ingabe ihele lami AC3 liyimfihlo ngesikhathi sokuguqulwa ku AMR?

Yebo — amafayela alayishwe phezulu AC3 aphathwa emisebenzini ehlukanisiwe futhi asuswa ngaphakathi kwemizuzu. Asikwazi ukudlala emuva, ukugcina isikhathi eside, noma ukuhlanganisa okuqukethwe kwesandi. Ifasitela lokugcinwa okuphelele likhona ku /privacy/.

AC3

I-AC3 (I-Audio Codec 3) ifomethi yokucindezela komsindo evame ukusetshenziswa kumathrekhi omsindo we-DVD ne-Blu-ray disc.

AMR

I-AMR (I-Adaptive Multi-Rate) ifomethi yokuminyanisa yomsindo elungiselelwe ukubhalwa kwekhodi yenkulumo. Ivamise ukusetshenziswa kumakhalekhukhwini ukuqoshwa kwezwi nokudlalwa komsindo.