Sinthani M4A ku AAC

Sinthani Yanu M4A ku AAC mafayilo mosavuta

Sankhani mafayilo anu

*Mafayilo achotsedwa patatha maola 24

Sinthani mafayilo okwana 1 GB kwaulere, ogwiritsa ntchito Pro amatha kusintha mafayilo okwana 100 GB; Lowani tsopano

Kukweza

Momwe mungasinthire M4A ku AAC

Gawo 1: Kwezani yanu M4A mafayilo pogwiritsa ntchito batani lomwe lili pamwambapa kapena pokoka ndi kugwetsa.

Gawo 2: Dinani batani la 'Convert' kuti muyambe kusintha.

Gawo 3: Tsitsani pulogalamu yanu yosinthidwa AAC mafayilo

M4A ku AAC Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji M4A audio ku AAC popanda kuwonongeka kwabwino?

Kutsitsa fayilo ya M4A ndipo wosinthira wathu amasankha kulumikizana kwa AAC codec / bitrate komwe kumagwirizana ndi chiyambi. Kulephera kopanda malire (AAC = WAV / FLAC / ALAC) kumateteza chilichonse; kulephera kopanda malire (AAC = MP3 / AAC / OGG) kumasinthidwa ku 192 kbps komwe kumawoneka bwino kwa audiobooks olankhula ndi nyimbo zambiri.

Kodi kusinthira M4A ku AAC ndi gawo lachiwiri la kutsitsa kwa lossy?

Ndikukhulupirira kuti ndinu oyenera, ndipo ndibwino kuti mupange. Mafomu awiriwa ndi owonongeka, choncho AAC encoder akuchita ntchito kuchokera ku audio yomwe yakhala ikuyenda mwa psychoacoustic pass, ndipo masankho ake oyamba amapanga gawo loyamba. Pa 192 kbps kapena pamwambapa, zotsatirazi ndizosawoneka bwino kwa ambiri owerenga. Ngati muli ndi master yopanda kusowa, kulemba koyamba kwa AAC kuchokera ku yomwe imalepheretsa kupita kwachiwiri kwathunthu. M4A ali AAC m'malamulo ambiri, kapena Apple Lossless (ALAC) pamene anachokera ku lossless rip. AAC ndi lossy koma bwino kuposa MP3, ndipo amagwira mpaka 48 ma channels mwachilengedwe kuposa kukhala bolted pa stereo kupanga.

Nchifukwa chiyani ena a M4A anga a M4A sasintha?

DRM. Mtundu wa M4A mafayilo amasinthidwa ndi sitolo kapena pulogalamu yomwe idatulutsa, ndipo mawu osakira satha kusinthidwa ndi aliyense wosintha. Chomwecho chomwe mwachotsa nokha, cholemba, kapena chogula popanda kuteteza chimasinthidwa moyenera; kugula kwa licensed sichidzachitika. M4A amachititsa zinthu ziwiri kwambiri zosiyana m'mbuyo kwa m'modzi kuwonjezeka - lossy AAC ndi lossless ALAC - ndi non-Apple hardware thandizo ndi zosagwirizana.

Kodi bitrate ya AAC imagwiritsa ntchito?

Default ndi 192 kbps kwa lossy AAC; pass-through kwa lossless AAC. Kusintha kwa 320 kbps kwa audiophile kapena 64-96 kbps kwa mawu olankhula audiobooks (owoneka bwino kwa mawu, amadula kukula kwa fayilo).

Kodi kuchoka ku M4A kupita ku AAC kumachepetsa mtundu wanga wa audio?

Ngati M4A ndi lossy ndipo AAC ndi lossless (mwachitsanzo MP3 → WAV), fayilo ya AAC si yabwino kuposa M4A - simungathe kubwezeretsa zambiri zomwe zatulutsidwa. Ngati M4A ndi lossless ndipo AAC ndi lossy, yembekezerani kuti codec ya AAC ibwezeretse; pa 192 kbps izi ndi zosawoneka bwino kwa zinthu zambiri.

Kodi wosintha M4A kupita ku AAC amasunga ID3 / metadata tags?

Ndikoyenera - dzina, woimba, album, chaka, mndandanda wa nyimbo, album art, ndi masamba olemba (ofunika kwambiri kwa audiobooks) amawerengedwa kuchokera ku M4A ndipo amalemba mu AAC wokhala ndi AAC mtundu umathandizira ma tag. M4B audiobook structure round-trips into M4B and AAX → M4B output.

Kodi ndingasinthire mamiliyoni a M4A mafayilo ku AAC?

Yai - chotsani fayilo ya M4A ndikuwapanga mofanana. Premium ili ndi ogwira ntchito ambiri mofanana ndi malire a fayilo, kotero fayilo ya 500-file batch imatha m'maola angapo osati m'maola angapo.

Kodi AAC idzakhala ndi kuchuluka kwa sampling monga M4A?

Mwachidule ndi yemweyo (48 kHz M4A → 48 kHz AAC). Ngati mukufuna kuchepetsa kusamvana kwa kugwirizana (mwachitsanzo 96 kHz → 44.1 kHz kwa kulemba CD) kusankha kwa kusamvana kwamphamvu kumachita izi ndi kusamvana kwabwino.

Kodi ndingasinthire kuwala kwamphamvu m'njira ya M4A mpaka AAC?

Ndiye — njira yosintha mawu imagwiritsa ntchito ITU-R BS.1770 / EBU R128 yosintha mawu ku AAC, yolenga -14 LUFS (mtengo wosinthira), -16 LUFS (mtengo wosinthira podcast), kapena -23 LUFS (mtengo wosinthira audiobook).

Kodi AAC idzasewera pafoni yanga yagalimoto / iPod / audiobook app?

MP3 amasewera padziko lonse. AAC amasewera pa Apple, ambiri Android, Sonos. FLAC amasewera pa Sonos ndi Android, osachepera bwino pa zaka zakale iPods. M4B audiobooks kusewera ndi bokosi la navigation pa iOS Buku, Audiobookshelf, ndi Smart Audiobook Player.

Kodi fayilo yanga M4A ndi yapadera panthawi yosintha?

Ndikoyenera - mafayilo a M4A omwe amatulutsidwa amachitidwa m'mabungwe osiyana ndi omwe amagwira ntchito ndipo amachotsa m'maola ochepa. Sitimasewera, sitisunga kapena sitigawana zolemba za audio.

Kodi ndi nthawi yayitali bwanji kuti musinthe audiobook ya 10-hour M4A kupita ku AAC?

Kusinthanso kwa codec yomweyo: 10-30 masekondi. Kusinthanso kwa codec yosiyana: nthawi zambiri 10-20% ya nthawi yoyambira, kotero buku la mawu la maola 10 limatha m'maola 60-120. Mapepala olemba nkhani amapita patsogolo ndi kugawidwa bwinobwino.