AMR (Laqabsiga Multi-Rate) waa qaab maqal maqal ah oo loo habeeyay codaynta hadalka. Waxaa caadi ahaan loo isticmaalaa taleefoonnada gacanta si loo duubo codka iyo dib-u-ciyaarista maqalka.
Isticmaalka Caadiga ah
Voice recordings
Mobile audio
Telephony
AMR Su'aalaha Badiya La Weydiiyo Ee Ku Saabsan Beddelka
Waa maxay AMR file audio?
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AMR waa codsi codka codka-band-ka yar asal ahaan loo isticmaalo 2G / 3G networks mobile. AMR qabtaa codka la fahmi karo at bitrates aad u hooseeya oo waa caadi in dhoofinta fariimaha codka, rikoorrada push-to-talk, iyo xusuusta hore feature-telefonka codka. AMR ka dhigaysa codka diiwaangelinta absurdly yar - saacad hadalka ku habboon in megabytes qaar ka mid ah - iyo waa waxa telefoonada badan weli diiwaanka wicitaanada in.
Immisa ayaa la yaab leh in la waayo faylka AMR?
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Wax kasta oo codsi-bixiyaha asalka ah uu go'aansaday inuu tirtiro, mana la soo celin karo. AMR 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. AMR waa codsi codka narrowband socda u dhexeeya 4.75 iyo 12.2 kbps, qaabeynta wadnaha codka aadanaha ka badan sida ay u kala duwanaansho audio buuxa.
Maxaa keenay in AMR diiwaangelintayda ay u muuqdo mid yar marka loo barbardhigo muusiga?
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Maxaa yeelay ma aha mid loo yaqaan inuu qaado muusig. AMR waa codsi codsi ah oo loo yaqaan 'narrowband speech codec' oo loogu talagalay shabakada moobiilka, oo loo habeeyay in lagu hayo erayada la fahmi karo oo lagu cabiro bitrate-ka hal-dhibcood ee kilobits. Wax kasta oo ka baxsan heerka codka aadanaha ayaa la iska indho tiray waqtigii la qabsaday. AMR music burburin: 8 kHz bandwidth ka saaraa wax kasta oo kor ku xusan frekuency telefoonka, iyo wax lacag ah oo dib-codsiinta soo celin.
Meel ma ka yimaadaan faylasha AMR?
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Voicemail, raadiyo push-to-talk, telefoonada gacanta ee hore iyo diiwaanka telefoonka - meel kasta oo audio u baahan yahay in ay ku socdaan ka badan xagal cidhiidhi ah, qiimaha sare leh. Dhaqankaas waxa uu ka dhigayaa labadaba sababta faylasha waa yar yihiin iyo sababta ay u maqlaan sida ay sameeyaan. AMR waa Adaptive Multi-Rate, hadalka codec 3GPP standardized u GSM wicitaanada codka iyo mobile codka recorders.
Maxaa keenay in faylkayga AMR uu muujiyo magaca raadinta ama sawirka?
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Sababtoo ah qaabka si dhab ah meel ay ku kaydiyaan ma leh. AMR waxaa lagu qeexay audio ku saabsan, oo aan meel caadi ah oo loogu talagalay magaca, album ama sawirka qaboojiyaha, sidaas ciyaartoyda dib u dhaca in ay muujiyaan magac file. U beddelo qaabka la calaamadeeyay waa waxa ka dhigaya maktabadda browsable - tags waxaa lagu qoray waqti isbedelka ka badan in la soo celiyo, sidaas darteed ka fikiraan in ay buuxiyaan wax kasta oo asalka ma soo qaadi.
Ma u baahanahay inaan weligey u kaydiyo faylasha cusub sida AMR?
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Marka kaliya haddii wax ka hooseeya u baahan yahay. qaabka weli furaysaa, oo waxaa jira wax degdeg ah oo ku saabsan u beddelo faylka aan dhibaato sababi, laakiin waa in aan ka sii halkaas oo tooling ama waxtarka u socdaa. Wax kasta oo cusub, qaabka hadda ku baxa wax dheeraad ah oo ka hortagtaa wareegga soo socda ee su'aashan qaar ka mid ah sano ka dib hadda.
Maxaa ka dhigaya in AMR faylka uusan ku ciyaarin boggayaga?
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Browsers decode a short, fixed list of audio formats and AMR 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.
Maxay tahay bitrate-ka aan u beddeli lahaa faylashayda AMR?
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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 AMR lossy ama lossless?
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AMR waa lossy - coder ka saaraa xogta coder xukuma in ay yihiin inaudible in ay gaaraan size file yar.
Maxaa aan u beddeli AMR in ay qaybsiga?
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Si email iyo qaybinta warbaahinta bulshada, u beddelaan AMR in MP3 - ciyaarta guud iyo faylka yar. Si aad u qaybiso sare-fidelity la audiophiles, u beddelaan FLAC ama WAV si ay u ilaaliyaan tayada asalka ah.
