AAC → AC3

Guqula Eyakho AAC kuya AC3 amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

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Guqula amafayela afinyelela ku-1 GB mahhala, abasebenzisi be-Pro bangaguqula amafayela afinyelela ku-100 GB; Bhalisa manje

Ukulayisha

Indlela yokuguqula AAC kuya AC3

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

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

Isinyathelo 3: Landa i-version yakho AC3 amafayela

AAC kuya AC3 Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiguqula kanjani umsindo AAC ube AC3 ngaphandle kokulahlekelwa ukhwalithi?

Layisha phezulu ihele AAC futhi umguquli ukhetha AC3 i-codec / i-bitrate ehambisana neprofayili yomsuka. I-lossless AC3 (WAV / FLAC / ALAC) igcina yonke isampula ngokugcwele; i-lossy AC3 (MP3 / AAC / OGG / Opus) iphutha liyi-192 kbps ecacile kakhulu kunoma iyiphi ingxenye yomculo. I-AAC ilahlekelwa yizinto kodwa isebenza kahle kunayo i-MP3, futhi iphatha kuze kube yi-48 channels ngokusemthethweni ngaphezu kokuboshwa ku-stereo design. AC-3 yisandi esingenalutho esingena-channel, sivame u-5.1 ku-384 noma ku-448 kbps, ne-metadata yokuxoxa nokuhlanganiswa ngezansi.

Ingabe ukushintsha AAC kuya ku AC3 kuyingxenye yesithathu yokucindezela okulahlekile?

Yebo, futhi kufanelekile ukuhlela. Izifomethi zombili ziyi-lossy, ngakho-ke i-AC3 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, uku-encoding i-AC3 kusuka kulo kunciphisa ukudlula okuphindiwe ngokuphelele.

Ingabe izihloko zengoma yami nesithombe se-albhamu sizohlala isikhathi eside uma ngishintsha AAC kuya ku AC3?

Akulungile. AAC ifaka i-metadata efanele, kodwa AC3 ayinaso isikhala esijwayelekile somuntu oculi, i-album, inani le-track noma umhlobiso we-cover, ngakho-ke amathegi asuswa ngaphandle kokulahleka. Gcina i-AAC njengekhophi elabelwe, noma uphinde ubeke i-tag ngemuva ngethuluzi njenge Mp3tag noma MusicBrainz Picard. AC-3 ayisebenzi kahle ngokuya ngemigomo yamanje futhi ayivunyelwe yiziphequluli, amafoni noma abadlali abaningi be-web ngaphandle kokuxhuma phezulu kwe-stereo.

Ihele AC3 liphele nini nge-bitrate?

Iphutha 192 kbps ku AC3 olahlekelwayo; dlula-nge- AC3 ongalahlekelwayo. Nciphisa ku 320 kbps uma ufuna ubukhulu obuphezulu bokungathembeki okulahlekile, 128 kbps ku-podcast yokusabalalisa obukhulu-bulinganiselwe, noma 96 kbps ku-voice-only sources lapho ifayela elincane libalulekile kunemininingwane yestudio.

Ingabe ukusuka ku AAC kuya ku AC3 kuzonciphisa kakhulu izinga lami lomsindo?

Uma AAC ilahlekelwa (MP3, AAC) futhi AC3 ayilahlekelwanga (WAV, FLAC), AC3 ayingcono kuna AAC — awukwazi ukubuyisela imininingwane elahlekile yi-AAC codec elahlekile. Uma AAC ayilahlekelwanga futhi AC3 ilahlekelwa, cabanga ukuthi i-AC3 encoder izocindezela futhi; ku-192 kbps ilahlekelwa ayikwazi ukubonwa yimilomo eminingi.

Ingabe i-AAC kuya ku-AC3 igcina amathegi we-ID3 / metadata?

Yebo — isihloko, umculi, i-album, unyaka, inani le-track, i-album art, BPM, ukuphindeka-kwe-gain kufundeka kusuka ku AAC ibhokisi futhi kubhalwe kuma-fields alinganayo ku AC3 ibhokisi. ID3v2 (MP3), amazwana we-Vorbis (OGG, FLAC), ama-MP4 atoms (AAC, M4A), RIFF INFO (WAV), ama-iXML chunks wonke ama-maps ngokuhlanzekile. AC-3 yiDolby Digital, ifomu elijikelezayo elijwayelekile le-laserdisc, DVD, ATSC broadcast ne-cinema ekuqaleni kuka-1990.

Ingabe ngingenza ukuguqulwa kwekhulu le AAC amafayela abe AC3?

Yebo — susa isibaya se AAC amafayela ngaphakathi futhi sizoziphatha ngokufanayo. I-Premium inemisebenzi eminingi efana ne-parallel futhi akukho lutho oluphezulu lwesayizi yefayela ngalinye, ngakho-ke i-500-file batch iphele ngemizuzu endaweni yamahora amahlanu. Ukwakhiwa kwefolda kugcinwa kwi-ZIP yesingeniso.

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

Ngokungagqibekanga yebo (a 48 kHz AAC ikhiqiza 48 kHz AC3, a 44.1 kHz AAC ikhiqiza 44.1 kHz AC3). Ukusebenza kahle okuthile — isibonelo, ukusatshalaliswa kwe-96 kHz studio masters kuya ku-44.1 kHz AC3 ukushaya i-CD, noma ukusatshalaliswa kwe-22 kHz voicemail kuya ku-44.1 kHz AC3 — isilinganiso sesampula esiphansi sifaka ukusatshalaliswa kabusha kwekhwalithi ephezulu ye-SOX-style.

Ingabe ngizolungisa umsindo ku-AAC kuya ku-AC3?

Yebo — ukhetho lokujwayelekile-lokujwayelekile lufaka ITU-R BS.1770 / EBU R128 ukujwayelekile ku AC3 kuphuma, libhekisa ku -14 LUFS (isizinda sokushayela) noma -16 LUFS (isizinda sepodcast) noma inani elijwayelekile. Lisetshenziswa uma liguqula amabhayisikobho ngezinga lokuphatha elihlukile ku AC3 dlala.

Ingabe i-AC3 izodlala ku-stereo yemoto yami / iPod / Sonos / isikhulumi se-Bluetooth?

I-MP3 idlala ngokugcwele kuwo wonke amadivayisi ayenziwe eminyakeni edlule engu-20. I-AAC idlala ku-Apple, ku-Android, ku-Sonos, nama-stereo emoto yamanje. I-FLAC idlala ku-Sonos ne-Android edlule, ingcono kakhulu kuma-iPods adala. I-WAV idlala kuwo wonke amadivayisi kodwa ifayela likhulu. I-idivayisi-yesihluthulelo sokukhuphuka ikhetha i-AC3 codec ephephile ye-platform oyicacisile. AC-3 yi-surround track ngayinye ye-AV receiver, DVD player ne-TV decodes ngokusemthethweni, ngakho-ke ihlala iyi-baseline yokusabalalisa.

Ingabe ihele lami AAC liyimfihlo ngesikhathi sokuguqulwa?

Yebo — amafayela alayishwe phezulu AAC aphathwa ngabasebenzi abahlukanisiwe futhi asuswa emizuzwini. Asikwazi ukudlala, ukugcina, noma ukuhlanganisa okuqukethwe kwesandi. Ipayipi lisebenza ngehardware esilawula ngayo kusukela ekuqaleni kuya kukuphela; akukho inkonzo yeqembu lesithathu ethola ifayela lakho.

Ingabe kuthatha isikhathi esingakanani ukushintsha ihora le-AAC libe AC3?

I-codec efanayo iphinde i-mux (isibonelo AAC ngaphakathi M4A -> AAC ngaphakathi MP4): imizuzwana engu-10-30. Ushintsho lwe-codec (isibonelo FLAC -> MP3 noma WAV -> AAC): ngokuvamile 10-20% yomthombo wesikhathi, ngakho-ke ihora AAC -> AC3 liphele ngemizuzu engu-6-12 ku-pipeline ejwayelekile.