Beddel AAC ilaa MP3

Haa, waana wax ku habboon qorsheynta. Labada qaababba waa waxyeello, sidaa darteed MP3 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 MP3 kaas oo ka hortagaya in la isku daro. 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. MP3 waa lossy: a psychoacoustic qaabka ka saaro frekuency dhegta waa in aan la filayn in la ogaado, caadi ahaan 128 ilaa 320 kbps.

Waa in la isku dhejiyaa stereo, maxaa yeelay MP3 ma laha qaabka multichannel-ka. Downmix waxay isticmaalaan isku-darka caadiga ah si wada hadalka khadka dhexe uu u sii jiro oo cad yahay oo la isku daro heerka hoos u dhaca. Wax kasta oo ku xiran meelaynta kanalka kala duwan ayaa la tagay markaa. MP3 waa technically outclassed by AAC iyo Opus at bitrate kasta, ma kaydin karo in ka badan laba kanaal oo faa'iido leh, iyo waliba ku daray dib u dhac coder yar.

Default waa 192 kbps loo baahan yahay MP3; pass-through loo baahan yahay MP3. Ku dar 320 kbps audiophile ama 64-96 kbps loogu talagalay buugaagta maqalka ah ee hadalka (caddeysan codka, qaybinta faahfaahinta faahfaahinta).

Haddii AAC ay tahay mid khasaartay iyo MP3 ay tahay mid aan khasaarin (tusaale ahaan MP3 → WAV), faylka MP3 ma aha mid ka fiican AAC — ma awoodi kartid inaad soo ceshato macluumaadka horeyba loo tuuray. Haddii AAC ay tahay mid khasaartay iyo MP3 ay tahay mid khasaartay, ka yaab MP3 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 AAC waxaana lagu qoray MP3 baakadka halkaas oo MP3 qaabku taageerayo astaamaha. M4B audiobook dhismaha safarka wareega M4B iyo AAX → M4B soo saarka.

Haa - ku rid faylka AAC 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 AAC → 48 kHz MP3). 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 MP3 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 AAC 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.

Same-codec dib-mux: 10-30 ilbiriqsi. Re-code in codec kala duwan: caadi ahaan 10-20% ee waqtiga asalka ah, sidaas darteed 10-saac audiobook dhamaystiran 60-120 daqiiqo. Chapter markers noolaadaan round-safar iyo kala qaybsan si nadiif ah.