Beddel M4A ilaa AC3

Haa, waana wax ku habboon qorsheynta. Labada qaababba waa waxyeello, sidaa darteed AC3 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 AC3 kaas oo ka hortagaya in la isku daro. A M4A haystaa AAC in xaaladaha badan, ama Apple Lossless (ALAC) marka ay ka yimaadeen a lossless riix. AC-3 waa lossy multichannel audio, caadi ahaan 5.1 at 384 ama 448 kbps, la metadata u normalization wada hadalka iyo downmixing.

Ma jiro. M4A wuxuu ku jiraa blokada metadata saxda ah, laakiin AC3 ma laha meel caadi ah oo loogu talagalay muusig, album, lambarka raadinta ama sawirka daabacaadda, sidaa darteed tagga ayaa la jaray oo aan la jabin. Ilaalinta M4A sida koontada la daabacay, ama dib u soo celi ka dib qalab sida Mp3tag ama MusicBrainz Picard. AC-3 waa aan wax ku ool ah oo ay heerarka casriga ah oo aan la aqbali karin by browsers, telefoonada ama ciyaartoyda web badan oo aan la downmix in stereo.

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 hardware taageerada waa aan isku mid ahayn.

Default waa 192 kbps loo baahan yahay AC3; pass-through loo baahan yahay AC3. Ku dar 320 kbps audiophile ama 64-96 kbps loogu talagalay buugaagta maqalka ah ee hadalka (caddeysan codka, qaybinta faahfaahinta faahfaahinta).

Haddii M4A ay tahay mid khasaartay iyo AC3 ay tahay mid aan khasaarin (tusaale ahaan MP3 → WAV), faylka AC3 ma aha mid ka fiican M4A — ma awoodi kartid inaad soo ceshato macluumaadka horeyba loo tuuray. Haddii M4A ay tahay mid khasaartay iyo AC3 ay tahay mid khasaartay, ka yaab AC3 codec si ay u soo celiso; 192 kbps waxaas oo dhan waa mid cad oo loogu talagalay waxyaabaha badankood.

Haa - magaca, muusig, album, sanadka, lambarka raadinta, sawirka album, iyo calaamadaha faqradaha (waxay muhiim u yihiin buugaagta maqalka) waxaa laga akhrin karaa M4A waxaana lagu qoray AC3 baakadka halkaas oo AC3 qaabku taageerayo astaamaha. M4B audiobook dhismaha safarka wareega M4B iyo AAX → M4B soo saarka.

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

By default haa (48 kHz M4A → 48 kHz AC3). Haddii aad u baahan tahay in ay hoos u soo bandhigaan si ay u wada shaqeeyaan (tusaale ahaan 96 kHz → 44.1 kHz si ay u CD burning) ka horumarsan tusaale-ka-raac ikhtiyaarka sameeyaan this la tayo sare ah resampling.

Haa - ikhtiyaarka loodness-normalize wuxuu ku habboon yahay ITU-R BS.1770 / EBU R128 caadiga ah ee AC3 soosaarka, oo ku lug leh -14 LUFS (sharciga qulqulka), -16 LUFS (sharciga podcast), ama -23 LUFS (sharciga buugaagta maqalka).

MP3 ciyaarta adduunka oo dhan. AAC ciyaarta on Apple, Android ugu badan, Sonos. FLAC ciyaarta on Sonos iyo Android, ka yar oo wanaagsan on iPods hore. M4B audiobooks ciyaaraan la qaybta navigation on iOS Books, Audiobookshelf, iyo Smart Audiobook Player.

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. Si gaar ah muhiim marka la shaqeynayo buugaag audiobook ah.