M4A → AIFF

Sinthani Yanu M4A ku AIFF mafayilo mosavuta

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Kukweza

Momwe mungasinthire M4A ku AIFF

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 AIFF mafayilo

M4A ku AIFF Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji M4A audio ku AIFF popanda kuwononga mtundu?

Kutsitsa fayilo ya M4A ndipo wosinthira amasankha AIFF codec ndi bitrate kuti agwirizane ndi chiyambi. AIFF yopanda kusowa (WAV / FLAC / ALAC) imateteza zonse zomwe zimafanana; AIFF yowonongeka (MP3 / AAC / OGG / Opus) imayikidwa ku 192 kbps yomwe ndi yosawoneka bwino kwa amayi ambiri. M4A ali AAC m'malamulo ambiri, kapena Apple Lossless (ALAC) pamene anachokera ku lossless rip. AIFF amasunga PCM yosasinthika ya big-end — yomwe ndi yofanana ndi WAV ya Apple, ndi kusamvana kwa bit-by-bit.

Kodi kusinthira M4A ku AIFF kumawonjezera mtundu wa audio?

Sichoncho, ndipo ndibwino kuti mukhale wopanda kanthu: palibe chomwe chingachitike. M4A chomwe chatha kuchotsa mfundo zazikulu panthawi yake yoyamba yolemba, ndikuyika zomwe zilibe kanthu AIFF zimasunga zomwe zilibe kanthu - sichoncho. Fayilo imakula nthawi zambiri ndipo imawoneka ngati yofanana. Ndibe njira yoyenera yosinthira, chifukwa AIFF siyiwonjezera chitukuko chachiwiri cha artefacts pamene mukutumiza. AIFF ndi studio interchange mtundu pa macOS, amasamalira metadata bwino kuposa WAV, ndi kutumiza mu Logic ndi Pro Tools mwamsanga. M4A amachititsa zinthu ziwiri kwambiri zosiyana m'mbuyo kwa m'modzi kuwonjezeka - lossy AAC ndi lossless ALAC - ndi non-Apple hardware thandizo ndi zosagwirizana.

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, cholemba kapena chogula popanda kuteteza chimasinthidwa moyenera; kugula kwa licensed sichidzachitika.

Kodi AIFF idzasewera m'galimoto yanga kapena pa hardware yakale?

Nthawi zambiri sichoncho. M4A imasinthidwa ndi chilichonse, kuphatikizapo magalimoto agalimoto ndi osewera okalamba; AIFF amafunikira mapulogalamu omwe amadziwa codec, omwe nthawi zambiri amakhala ndi zida zosagwirizana. Ngati malo osankhidwa ndi stereo yagalimoto kapena wosewera wonyamula, ndiye kuti ndi chitsimikizo cholimba chokhala pa M4A. AIFF ndi lalikulu monga WAV ndi zoipa thandizo kunja kwa Apple padziko, kotero ndi woipa kusankha kwa kugawa.

Kodi fayilo yochokera ku AIFF idzagwiritsa ntchito bitrate iti?

Mtengo woyambirira ndi 192 kbps kwa lossy AIFF; pass-through kwa lossless AIFF. Chotsani 320 kbps kwa audiophile kapena 96 kbps kwa mawu / podcast. Chosankha chimasintha kukula kwa fayilo motsutsana ndi kumvetsera; pansi pa 96 kbps lossy artifacts amawoneka pa nyimbo.

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

Ngati M4A ndi lossy ndipo AIFF ndi lossless (mwachitsanzo MP3 → WAV), AIFF si yabwino kuposa M4A — simungathe kubwezeretsa zambiri zomwe zatulutsidwa. Ngati M4A ndi lossless ndipo AIFF ndi lossy, AIFF codec imabwezeretsa; pa 192 kbps zotsatira zake ndi zosawoneka bwino kwa zinthu zambiri.

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

Ndiyo — mutu, woimba, album, chaka, mndandanda wa nyimbo, ndi zithunzi za album zimawerengedwa kuchokera ku M4A ndipo zimalemba ku AIFF komwe mtundu umathandizira ma tag. Zomwe zimadziwika bwino (MP3, AAC, FLAC, OGG) zimasamalira ma tag bwino; WAV yosapanga dzimbiri siyichita. AIFF ndi Apple Audio Interchange File Format kuchokera 1988, anamanga pamodzi IFF chunk kupanga monga AVI RIFF.

Kodi ndingasinthire mamiliyoni a M4A mafayilo ku AIFF?

Yai - tidzayika fayilo ya M4A ndipo tidzazipanga mofanana. Premium ili ndi ogwira ntchito ambiri mofanana ndi malire a fayilo, kotero fayilo ya 500 imatha m'maola angapo osati m'maola angapo.

Kodi AIFF idzakhala ndi kuchuluka kwa sampling yomweyo ngati M4A?

Mwa default yes — 48 kHz M4A imakhala 48 kHz mu AIFF. Ngati mukufuna kuchepetsa kusamvana kwa ma CD (96 kHz → 44.1 kHz kwa kulemba CD), kusankha kwa kusamvana kwa ma CD kumagwiritsa ntchito kusamvana kwabwino kwambiri panthawi yolemba ma CD.

Kodi ndingasinthire kuwala kwamphamvu pamene ndikusintha M4A kupita ku AIFF?

Ndiyo — njira yosintha mawu kuti akhale oyenera imagwiritsa ntchito ITU-R BS.1770 / EBU R128 kuti ikhale yoyenera kwa AIFF, yolenga -14 LUFS (zoyenera kusewera) kapena -16 LUFS (zoyenera kusewera podcast).

Kodi AIFF yanga idzasewera pa stereo yagalimoto, iPod, ndi Sonos?

MP3 imasewera kulikonse. AAC imasewera pa Apple, ambiri a Android, ndi Sonos. FLAC imasewera pa Sonos ndi Android koma si pa iPods oyambirira. WAV imasewera pa chilichonse koma ndichodabwitsa. Kusintha kwa chipangizo chatsopano chimasankha AIFF codec yosinthidwa kwa zida zanu zofunikira.

Kodi fayilo yanga M4A ndi yapadera pamene ikusintha kukhala AIFF?

Ndikofunika — fayilo ya M4A imatha kuchitidwa m'ma worker osiyana ndipo imatha kuthetsedwa m'maola ochepa. Tisaseweranso, sitisunga nthawi yaitali, kapena sitigawana zomwe zili pa audio.

M4A

M4A ndi mtundu wamafayilo omvera womwe umagwirizana kwambiri ndi MP4. Imapereka kupsinjika kwapamwamba kwamawu ndi chithandizo cha metadata, ndikupangitsa kuti ikhale yoyenera kugwiritsa ntchito zosiyanasiyana.