M4A → AAC

Beddel Adiga M4A ilaa AAC si aan dadaal lahayn

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Sida loo beddelo M4A ilaa AAC

Tallaabada 1aad: Soo geli M4A faylasha adoo isticmaalaya badhanka kore ama jiid oo hoos u dhig.

Tallaabada 2: Guji badhanka 'Beddelaan' si aad u bilowdo beddelka.

Tallaabada 3: Soo dejiso faylasha aad bedeshay AAC faylasha

M4A ilaa AAC Su'aalaha Badiya La Weydiiyo Ee Ku Saabsan Beddelka

Sidee baan u beddeli karaa M4A audio ilaa AAC iyadoon la lumin tayada?

Soo deji faylka M4A oo soo beddelaha wuxuu doortaa isku-dhafka codec / bitrate ee AAC oo la mid ah asalka. AAC (WAV / FLAC / ALAC) oo aan waxba ka jirin ayaa si sax ah u ilaalinaya tusaale kasta; AAC (MP3 / AAC / OGG / Opus) oo aan waxba ka jirin ilaa 192 kbps oo cad oo u eg dhammaan waxyaabaha muusikada. A M4A haystaa AAC in xaaladaha badan, ama Apple Lossless (ALAC) marka ay ka yimaadeen a lossless riix. AAC waa lossy laakiin ka fiican MP3, iyo waxa uu xakamayn ilaa 48 kanaallada asalka ah in ka badan in la bolted on naqshad stereo.

Ma aha in lagu beddelo M4A ilaa AAC wareegga labaad ee isku dhafka khasaaraha?

Haa, waana wax ku habboon qorsheynta. Labada qaababba waa waxyeello, sidaa darteed AAC codsi-qorayaasha ayaa ka shaqeeya codka oo horeyba u maraya hal xagal psychoacoustic ah, iyo go'aamadeeda gaarka ah waxay isku daraan xulashada koowaad. 192 kbps ama ka sarreeya natiijada ayaa weli u muuqata mid cad oo u muuqda mid ka mid ah dhagaystayaasha badan. Haddii aad leedahay madaxa waxyeellada leh meel kasta, codsiga AAC kaas oo ka hortagaya in la qaado laba jeer oo dhan.

Maxaa sababay qaar ka mid ah faylasha M4A aan loo beddelin?

DRM. M4A faylasha qayb ka mid ah ayaa lagu keydiyaa dukaanka ama softiweerka ay soo saareen, oo codka la keydiyay ma aha mid lagu soo dejiyo mid kasta oo soo saaraha ah. Wax kasta oo aad ku riixday, diiwaan gashan, ama iibsatay oo aan la ilaalin ayaa si caadi ah u beddelaya; iibka liisanku ma dhici doono. M4A qarin laba waxyaabo aad u kala duwan ka dambeeya mid ka mid ah kordhinta - lossy AAC iyo lossless ALAC - iyo aan Apple hardware taageerada waa aan isku mid ahayn.

What bitrate does the AAC file end up at?

Default 192 kbps loo baahan yahay loo baahan yahay AAC; pass-through loo baahan yahay loo baahan yahay AAC. Ku dar 320 kbps haddii aad rabto in aad ugu badan oo loo baahan yahay loo baahan yahay, 128 kbps si aad u qaybiso podcast-ka, ama 96 kbps si aad u hesho cod-keliya oo keliya oo ah meesha faylka yar yahay wax ka badan faahfaahinta studio.

Ma ka dhigi kartaa M4A ilaa AAC mid ka hooseeya tayada maqalka?

Haddii M4A ay tahay mid khasaartay (MP3, AAC) iyo AAC waa mid aan khasaarin (WAV, FLAC), AAC maahan mid ka fiican M4A - ma awoodi kartid inaad soo ceshato macluumaadka horeyba loogu tirtiro codec-ka M4A. Haddii M4A ay tahay mid aan khasaarin iyo AAC ay tahay mid khasaartay, ka fiiri AAC encoder si aad u soo celiso; at 192 kbps khasaaraha waa mid aan la arki karin dhegaha badan.

Ma M4A ilaa AAC ayaa ku beddelaya ID3 / metadata tags?

Haa - magaca, muusig, album, sanadka, lambarka raadinta, sawirka album, BPM, soo noqnoqoshada-gacan ayaa laga akhrin karaa M4A baakadaha oo lagu qoray meelaha la midka ah ee AAC baakadaha. ID3v2 (MP3), faallooyinka Vorbis (OGG, FLAC), atoms MP4 (AAC, M4A), RIFF INFO (WAV), iXML chunks dhammaan khariidadda si nadiif ah. AAC waa Advanced Audio Coding, standardised in 1997 sida MPEG-2 qaybta 7 iyo waxaa loo sameeyay si cad in ay bedelaan MP3.

Ma ku beddeli karaa boqolaal fayl oo M4A ah AAC?

Haa - ku rid faylka M4A faylasha oo aan u gudbinno si isku mid ah. Premium waxay leedahay shaqaalaha isku midka ah iyo ma laha xaddiga faylka, sidaa darteed 500-file batch wuxuu ku dhammaadaa daqiiqado ka badan alaabtii daqiiqado.

AAC ma ku hayn doontaa tirada tusaale ee M4A?

By default haa (a 48 kHz M4A soo saartaa 48 kHz AAC, a 44.1 kHz M4A soo saartaa 44.1 kHz AAC). Ujeedada gaar ah ee la jaanqaadista - tusaale ahaan, hoos u dhigista 96 kHz studio masters ilaa 44.1 kHz AAC CD-da lagu qoro, ama kor u qaadista 22 kHz fariimaha codka ilaa 44.1 kHz AAC - tusaale-ka-dhimista hoos u dhaca ayaa ku habboon tayada sare ee SOX-style resampling.

Ma ku hagaajin karaa codka M4A ilaa AAC?

Haa - ikhtiyaarka loodness-normalize wuxuu ku habboon yahay ITU-R BS.1770 / EBU R128 caadiga ah ee AAC soosaarka, oo ku lug leh -14 LUFS (sharciga qulqulka) ama -16 LUFS (sharciga podcast) ama qiime gaarka ah. Faa'iido leh marka la barbardhigo raadadka la isku beddelayo oo leh heerar kala duwan oo heerar ah oo ah AAC playlist.

Ma AAC ayaa ku ciyaari doona gaarigayga stereo / iPod / Sonos / Bluetooth speaker?

MP3 plays universally on every device made in the last 20 years. AAC plays on Apple, most Android, Sonos, and modern car stereos. FLAC plays on Sonos and recent Android, less well on older iPods. WAV plays on everything but the file is huge. The device-target dropdown picks a safe AAC codec for the platform you specify. AAC maqli karaa si aad u fiican ka badan MP3 hoos 128 kbps iyo waa track audio default in MP4, YouTube, Apple Music iyo warbaahinta. AAC waa patent-encumbered, iyo qaar ka mid ah ciyaartoyda aad u hore weli ka diiday halkaas oo ay aqbali doonaan MP3.

Faylkayga M4A ma gaarbaa marka la beddelayo?

Haa — faylasha la soo dejiyey M4A waxaa lagu dhaqaajiya shaqaalaha kala duwan oo la tirtiraa daqiiqado gudahood. Aan marnaba ciyaarin, kaydin, ama qaybin waxyaabaha maqalka ah. Wabiga wuxuu ku socdaa qalabka aan xakamaynayno dhammaadka-dhamaadka; adeegyada dhinac saddexaad ma helaan faylkaaga.

Maxay ku qaadataa in la beddelo M4A ilaa AAC?

Same-codec re-mux (tusaale ahaan, AAC M4A gudaha -> AAC MP4 gudaha): 10-30 ilbiriqsi. Codec isbedelka (tusaale ahaan, FLAC -> MP3 ama WAV -> AAC): caadi ahaan 10-20% ee muddada asalka ah, sidaas darteed 1-saac M4A -> AAC dhamaystirka 6-12 daqiiqo ee nidaamka xawaaraha.

M4A

M4A waa qaab file maqal ah oo si dhow ula xiriira MP4. Waxay bixisaa cadaadis maqal oo tayo sare leh oo taageero u ah metadata, taasoo ka dhigaysa mid ku habboon codsiyada kala duwan.