AMR waa codka codec tuned in la diiwaan geliyo codka iyo wicitaanada telefoonka, taas oo ah sababta muusiga u maqli karaa oo xun oo ku jira.
Isticmaalka Caadiga ah
Voice recordings
Mobile audio
Telephony
AMR Su'aalaha Badiya La Weydiiyo Ee Ku Saabsan Beddelka
Maxaa ah AMR fayl?
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AMR (Adaptive Multi-Rate) is an audio format optimized for speech compression.
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 xagasha 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 karo, sidaa darteed isbeddelka qaabka looma baahna inuu ilaaliyo xaaladda hadda jirta ee aan dib u 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.
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 - ciyaaryahanka konfiguration ma sii kordhin doono decoder browserka ma keeni doono.
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 galay a lossy ka gudbaan oo waxba ka soo kabsan codsi ugu horeysay ee la tirtiro.
Ma isticmaalka AMR 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 AMR 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.
Ma waxaan u bedeli karaa magacyada dheeriga ah ee aan u beddelo AMR?
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In ka badan marnaba, iyo waa in la fahmo sababta: kordhinta waa mid label, halka bayt gudaha waxaa loo dhisay qaab gaar ah. Rename soo saaro file oo magaciisa ballan wax ay ku jiraan ma bixiyaan, iyo waxa ay u furan tahay ama diido file ama misreads. Isku-darka mid ka mid ah oo cidhiidhi ah waa laba qaabab oo dhab ahaanba waa midba midka kale ee baakadaha magacyada kala duwan - iyo xitaa ka dibna dib u soo celinta saxda ah waa ka ammaan badan yahay in la magacabo.
Maxaa ku dhaca faylka AMR ka dib markii la beddelay?
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Waxaa la tirtiri doonaa si otomaatig ah. Upload iyo natiijada la beddelay ku nagaan servers our in ka badan 24 saacadood, taas oo ka tagay waqti si ay u soo dejisan natiijada, oo markaas waxaa laga saaray by nadiifinta otomaatiga ah. Transfer socda HTTPS labada dhinacba. qofna ma akhriyo waxyaabaha, waxba ma Indexed, iyo waxba ma la gudbiyay qof kale.
Sidee ayey u badan tahay in lagu beddelo AMR?
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Files yaryar si wax ku ool ah u instant, iyo xaaladaha in ay qaataan waqti dhab ah waa kuwa sameeya shaqada dhabta ah: diiwaan dheer oo uu leeyahay in la soo celiyo-coded frame by frame, a warqad scanned socda ka mid ah aqoonsiga calaamad, ama qayb aad u weyn. Haddii ay isbedelka kaliya rewraps ama repackages xogta hadda jira uu ku sii socdaan si deg deg ah, xitaa haddii ay tahay sida weyn ee file ah, sababtoo ah waxba ma aha in la decoded.
