M4R waa qaab file loo isticmaalo ringtones iPhone. Asal ahaan waa faylka maqalka ee AAC oo leh kordhin kale.
Isticmaalka Caadiga ah
iPhone ringtones
Custom alerts
Notification sounds
M4R Su'aalaha Badiya La Weydiiyo Ee Ku Saabsan Beddelka
Waa M4R lossy ama lossless?
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M4R waa lossy - codeer ka saaro xogta codeer xukuma in ay yihiin inaudible in ay gaaraan size file yar. M4R hoos u dhac ku socda iOS Dhaqdhaqaaqa liiska via Finder ama iTunes la aan wax ka badan processing.
Immisa ayaa la yaab leh in la waayo faylka M4R?
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Wax kasta oo codsi-bixiyaha asalka ah uu go'aansaday inuu tirtiro, mana la soo celin karo. M4R wuxuu ku dhejiyaa iyadoo loo marayo qaabeynta waxa dhegta aysan ogeyn - codadka xasilloon ee ku fadhiya kuwa xoogga badan, frekansyada dhinacyada maqalka - iyo si joogto ah u tirtirto. Bitrate caafimaad leh oo aan la maqli karin in ka badan qof kasta. Waxa aan ahayn waa la soo celin karaa, sidaas darteed isbeddelka qaabka looma baahna inuu ilaaliyo xaaladda hadda jirta ka dib markii la soo celiyo asalka. Payload waa AAC, caadi ahaan ku koobnaa 40 ilbiriqsi, taas oo ah codka ugu dheer ee iOS aqbali doonaa.
Maxaa ka dhigaya in iPhone ringtone uu yahay M4R?
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Sababtoo ah iOS u fiirsato in container gaar ah ee faylka toos ah iyo wax kale oo aan la tixgelin, laakiin mid ka mid ah audio gudaha ku jira waa in ay noqon kartaa. A M4R waa caadi AAC audio la extension kala duwan iyo muddo ka hooseysa afartan ilbiriqsi. Beddelka track, ka jarto qaybta aad dhab ahaan u baahan tahay, iyo nuqul ka mid ah Finder ama Apple qalabka app. M4R waa iPhone ringtone - a caadi ah AAC file in MP4 container la kordhinta la beddelay si iTunes files sida codka.
Maxaa ka dhigaya in M4R faylka uusan ku ciyaarin boggayaga?
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Browsers decode a short, fixed list of audio formats and M4R is outside it, so the file downloads instead of playing or the player simply reports a error. Desktop software with a wider codec set opens it without trouble. Haddii audio uu ku ciyaaro bogga webka, isbedelka waa xalka - ciyaaryahanna ma aha qaabeynta ciyaaryahanka ayaa ku dari doona decoder browserka ma keeno. M4R waa Apple-keliya iyo dhererka-la xaddiday; wax kasta oo ka badan 40 ilbiriqsi waa si qaylo leh loo diiday telefoonka.
Ma u baahanahay Mac si aan ula shaqeeyo faylasha M4R?
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No. format ka soo baxay Apple iyo waxa ay qalabka iyo software soo saaraan default, laakiin files iyaga oo keliya waa caadi iyo akhrin fiican meel kale oo la qalab saxda ah. U beddelo halkan ka dhaca server, sidaas darteed ma QuickTime install, ma Apple hardware iyo ma platform-ka gaar ah codec pack waxaa ka mid ah meel kasta oo ka mid ah habka.
Maxay tahay bitrate-ka aan u beddeli lahaa faylashayda M4R?
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Xidhiidh goobta, ma aha asalka. Music, 256 ilaa 320 kbps waa mid cad in ay ku dhow dhagaystayaasha oo dhan; hadalka iyo podcasts, 96 ilaa 128 kbps waa tiro badan oo hal mar file mar kale. Codsiga kor ku qoran bitrate asalka ah meel la khasaariyey - waa runtii ilaalin audio oo horeyba u soo maray a lossy ka gudbaan iyo waxba ma soo celin doono codeeyaha ugu horeysay la tirtiro.
Ma isticmaalka M4R ma u baahan yahay ruqsad patent ah?
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Ma aha adiga. codecs ka qayb qaataan waxaa ka mid ah badeecada patent pools, iyo liisanku waa la go'aamiyey by dadka decoders doonta - telefoonka, browser, nidaamka hawlgalka - muddo ka hor file gaadho aad. Waa sababta qaabka waa meel kasta oo hardware iyo sababta royalty-free doorasho ka jira oo dhan, iyo waxba kama beddeli kartaa ku saabsan ku beddelo file aad hore u leedahay.
Ma soo beddelidda ma beddeli kartaa heerka tusaale ee M4R audio?
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A isbedelka haystaa qiimaha asalka ah - 48 kHz sii joogaa 48 kHz, 44.1 kHz sii joogaa 44.1 kHz - sababtoo ah resampling waa qiimaha tayada yar ee faa'iido la'aan marka waxba ma u baahan yahay. Isku-dhafka waa run: CD-yada audio u baahan yihiin 44.1 kHz, qaar ka mid ah ciyaartoyda hardware hore u aqbalaan wax kale, iyo codka pipelines badanaa doonayaan 16 kHz. Set qiimaha si cad oo ku saabsan xaaladahaas oo iska sii daaya oo keliya kale.
Maxaa aan u baahanahay in aan u beddelo M4R in ay wadaagaan?
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Si email iyo qaybinta warbaahinta bulshada, u beddelaan M4R in MP3 - ciyaarta guud iyo miisaanka file yar. Si ay u qaybiyaan high-fidelity la audiophiles, u beddelaan FLAC ama WAV si ay u ilaaliyaan tayada asalka ah.
Sidee bay u badan tahay in ay beddelaan bedeli doonaa size file?
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U beddelo M4R in qaab lossless sida WAV ama FLAC u haystaa cabbirka weyn; u beddelo MP3 ama AAC at bitrates caadiga ah (192-320 kbps) hoos u faylka by ku dhowaad 5-10x la ugu yar ee la arki karo isbedelka tayada.
