AMR (Adaptive Multi-Rate) wani tsari ne na matsawa mai jiwuwa wanda aka inganta don lambar magana. An fi amfani da shi a cikin wayoyin hannu don rikodin murya da sake kunna sauti.
Amfanin da Aka Yi Amfani da Su
Voice recordings
Mobile audio
Telephony
AMR Tambayoyin da ake yawan yi game da Canzawa
Mece ce fayil ɗin sauti na AMR?
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AMR shi ne wani codec na magana mai ƙunshe da bandwidth mai ƙunci wanda aka yi amfani da shi a farkon lokaci ta hanyar shafuka masu wayoyin hannu na 2G/3G. AMR na kama magana mai fahimta a cikin bitrate mai ƙasƙanci kuma yana da yawa a cikin fitarwa na wasiƙar magana, rikodin-zuwa-tattaunawa, da kuma wasu manyan fayil-da-wayoyin salula na waƙoƙi. AMR na sauke sauti mai ƙarancin girma - sa'a ɗaya na magana yana da girman megabytes - kuma shi ne abin da wasu wayoyin salula ke amfani da shi wajen sauke kiran.
Me yasa AMR na rikodin na yi sauti mai nauyi idan aka kwatanta da kiɗa?
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%s: Saboda ba'a yi nufinsa ba na ɗaukar kiɗa. AMR shi ne wani codec na magana mai zurfin band wanda aka gina domin shafuka masu wayoyi, an daidaita shi don ya kiyaye kalmomi masu fahimta a cikin bitrate wanda aka auna a cikin kilobites na adadin daya. An rufe duk abin da ke waje da zauren mutum a lokacin kamawa. Canja zuwa wata siffar da take da cikakken zauren yana riƙe da rikodin mai amfani a duk inda, amma ba zai iya ƙarawa ba da saurin da ba'a taba yin misali ba. AMR shi ne narrowband magana codec aiki tsakanin 4.75 da 12.2 kbps, modeling da mutum vocal tract a matsayin mai cikakken audio spectrum. AMR na halaka kiɗa: bandwidth ɗinsa na 8 kHz yana cire duk abin da ke sama da frequencies na waya, kuma babu adadin sake-encoding yana dawo da shi.
Daga ina fayilolin AMR suke zuwa?
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@ title: window AMR shi ne Adaptive Multi-Rate, magana codec 3GPP standardized ga GSM kira da wayar hannu sauti recorders.
Me ya sa fayil ɗin AMR na nuna ba tare da sunan waƙa ko kuma zane ba?
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Saboda wannan sifar ba ta da wurin da za'a adana su. An ƙayyade AMR a kan sauti kanta, ba tare da wani wuri na alƙawari ba ga sunan, albam ko hoton fuskar, don haka masu wasa na koma ga nuna sunan fayil. Canja zuwa wani sifar da aka yi da alaƙa da shi shi ne abin da ke sa wata ɗakin karatu ya zama mai zagayawa — ana rubuta alaƙa a lokacin canjawa ba tare da an dawo da su ba, don haka ka yi tsammanin za'a cika duk wani abu da ba a taba ɗaukar shi ba daga wurin.
Shin zan iya adana fayiloli masu zuwa kamar AMR?
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Me yasa fayil AMR bai iya wasa ba a cikin mai bincike na?
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Maganganun shafuka na dauke da wani jerin ƙananan, ƙayyade na nau'ikan sauti kuma AMR yana cikinsa, don haka fayil ɗin zai sauke a maimakon ya yi wasa ko kuma mai wasa zai yi rahoton kuskure kawai. Manhajar kwamfyutan tebur da ke da wata ƙungiya mafi girma na codec zai buɗe shi ba tare da matsala ba. Idan sauti na bukatar a yi wasa a kan wani shafi na yanar gizo, canja shi shi ne gyara — babu wani tsari na mai wasa zai ƙara wani mai saukar da sauti wanda mai bincike bai aiko ba.
Wacce bitrate zan iya canja fayilolina AMR zuwa?
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Shin, AMR ne mai hasãra ko bãbu hasãra?
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AMR yana da asara - mai enkoder na cire bayanai wanda mai enkoder ya yanke hukuncin cewa ba za a iya ji ba don isa ga girman fayil mai ƙaranci.
Me zan iya canzawa zuwa AMR don rabawa?
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Domin aikawa da raba kafofin watsa labarai na zamantakewa, canja AMR zuwa MP3 — wasa na duniya da girman fayil mai ƙaranci. Don rabawa mai girma da audiophiles, canja zuwa FLAC ko WAV don kiyaye ingancin asali.
Da yawa za a canza girman fayil da canjawa?
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Canja AMR zuwa wani format ba tare da asara ba kamar WAV ko FLAC yana riƙe da girman; canja zuwa MP3 ko AAC a cikin bitrate na al'ada (192-320 kbps) yana rage fayil ɗin da kusan 5-10x tare da ƙaramin canji na ingancin gani.
