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

Sideen u beddelaa M4A audio ilaa AAC iyadoon la lumin tayada?

Soo qaado faylka M4A iyo soo beddelaha wuxuu doortaa AAC codec iyo bitrate si uu ula mid noqdo asalka. Lossless AAC (WAV / FLAC / ALAC) wuxuu ilaaliyaa tusaale kasta oo bit-identically ah; lossy AAC (MP3 / AAC / OGG / Opus) ayaa loo doortay 192 kbps oo cad cad oo loogu talagalay dhegaha badan. 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 awoodi karo inuu ku soo celiyo wax kasta oo soo beddelaya. Wax kasta oo aad ku riixday, diiwaan gashan, ama iibsatay oo aan la ilaalin ayaa caadi ahaan u beddelaya; iibka liisanku ma sameyn doono. M4A qarin laba waxyaabo aad u kala duwan ka dambeeya mid ka mid ah kordhinta - lossy AAC iyo lossless ALAC - iyo aan-Apple taageerada hardware waa is khilaafsan.

Fadlan faahfaahinta faahfaahinta AAC ma isticmaali doontaa?

Default waa 192 kbps loo maqan yahay AAC; pass-ka loo maqan yahay AAC. Override in 320 kbps audiophile ama 96 kbps in codka / podcast. Doorashada ganacsi faylka weyn ka dhanka ah xasiloonida maqalka; hoos 96 kbps lossy artifacts noqdaan la arki karo on music.

Ma ka tagayaa M4A ilaa AAC si aan u yareeyo tayada maqalka?

Haddii M4A uu yahay mid khasaaro leh oo AAC uu yahay mid aan khasaarin (tusaale ahaan MP3 → WAV), AAC ma aha mid ka fiican M4A - ma awoodi kartid inaad soo ceshato macluumaadka horeyba loo tirtiro. Haddii M4A uu yahay mid khasaaro leh oo AAC uu yahay mid khasaaro leh, AAC codec-ka ayaa dib u soo celiya; 192 kbps, natiijada waa mid cad oo ku saabsan waxyaabaha badan.

Ma aha M4A in AAC soo beddelay haysta ID3 / metadata tags?

Haa - magaca, heesaha, album, sanadka, tirada raadinta, iyo sawirka albumka ayaa laga akhriyaa M4A badeecada oo lagu qoray AAC badeecada oo qaabku taageerayo astaamaha. Wax kasta oo la mid ah (MP3, AAC, FLAC, OGG) waxay la tacaalayaan astaamaha si fiican; WAV-ka aan la isticmaalin. 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 faylal ah M4A ilaa AAC?

Haa - ku rid faylka faylasha M4A oo aan u qaabeyno si isku mid ah. Premium waxay leedahay shaqaalaha ka badan oo isku mid ah oo aan lahayn xaddiga faylka, sidaa darteed 500-file batch wuxuu ku dhammaadaa daqiiqado ka badan boqolaal daqiiqo.

Ma AAC ma hayn doontaa heerka tusaale ahaan sida M4A?

Si default ah waa — 48 kHz M4A ku nool 48 kHz in AAC. Haddii aad u baahan tahay in ay hoos u soo bandhigaan si ay u wada shaqeeyaan (96 kHz → 44.1 kHz CD burning), ikhtiyaarka tusaale-ratada ku habboon tayada sare ee soo noqnoqoshada in la mid ah codsiga.

Ma ku hagaajin karaa codka marka aan ka beddelayo M4A ilaa AAC?

Haa - ikhtiyaarka loodness-normalize wuxuu ku habboon yahay ITU-R BS.1770 / EBU R128 caadiga ah ee AAC, oo ku lug leh -14 LUFS (sharciga qulqulka) ama -16 LUFS (sharciga podcast).

Ma AAC ii ciyaari doonaa gaariga stereo, iPod, iyo Sonos?

MP3 ciyaarta meel kasta. AAC ciyaarta Apple, Android ugu badan, iyo Sonos. FLAC ciyaarta Sonos iyo Android laakiin ma iPods hore. WAV ciyaarta wax kasta oo laakiin waa weyn. The advanced qalabka-hore loo dhigay dropdown doortaa AAC codec ugu fiican ee qalabka aad u baahan tahay. 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.

Ma aha M4A faylkayga gaar ah marka la beddelayo AAC?

Haa - faylasha la soo dejiyey M4A waxaa lagu dhaqaajiyaa shaqaalaha kala duwan oo la tirtiro daqiiqadaha. Aan marnaba u ciyaarno, u kaydinno muddo dheer, ama u qaybinno waxyaabaha maqalka ah. Fursada xafiiska oo dhan waa /privacy/.

Intee le'eg ayaa loo baahan yahay si loo beddelo 1-saac M4A ilaa AAC?

Same-codec re-mux: 10 ilaa 30 ilbiriqsi. Codso codsi kale oo kale: caadi ahaan 10 ilaa 20% muddada asalka ah, sidaas darteed 1-saac M4A → AAC wuxuu ku dhammaadaa 6 ilaa 12 daqiiqo. Shaqada batch waxay isku xiran tahay shaqaalaha si ay u sii socdaan.