AMR ndi mawu codec tuned kwa mawu zomvetsera ndi mafoni, amene ndi chifukwa chake nyimbo zoimba zoipa mu izo.
Ntchito Zofala
Voice recordings
Mobile audio
Telephony
AMR Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndi AMR audio wapamwamba?
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AMR ndi narrow-band mawu codec kale anagwiritsa ntchito ndi 2G / 3G mafoni mafoni. AMR amapeza mawu kumvetsa pa bitrates kwambiri pansi ndi zofala mu voicemail kutumiza kunja, kukanikiza-kulankhula zolemba, ndi zaka zamakono feature-foni mawu maganizo. AMR amachititsa mawu kujambula absurdly ochepa - nthawi ya mawu amagwirizana mu megabytes angapo - ndipo ndi zimene ambiri mafonibe kujambula mafoni mu.
Kodi kuchuluka kwabwino kwatha kuwonongeka m'fayilo ya AMR?
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AMR compresses ndi modeling zimene nkhope sadzaona - chisoni maganizo ozungulira pansi olimba, ma frequencies pa malire a kumvetsera - ndi mwamsanga kuchotsa izo. Pa bitrate bwino kuti ndi inaudible kwa pafupifupi aliyense. zimene sizosatheka ndi reversible, kotero kusintha kuti lossless mtundu amateteza dziko latsopano kuposa kubwezeretsa oyambirira. AMR ndi narrowband mawu codec kuyendetsa pakati pa 4.75 ndi 12.2 kbps, modeling munthu woimba m'mimba kuposa wonse audio spectrum.
N’chifukwa chiyani kujambula kwa AMR kumawoneka kopanda nzeru poyerekezera ndi nyimbo?
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Chifukwa sichiyenera kubweretsa nyimbo. AMR ndi codec ya mawu yokhala ndi bandwidth yafupi yopangidwa kuti igwiritse ntchito pa netiweki ya foni yam'manja, yosinthidwa kuti ipange mawu omvetsera pa bitrate yowerengedwa mu kilobits ya digito imodzi. Zonse zomwe zili m'mphepete mwa mawu a munthu zimathetsedwa nthawi yotenga. Kusintha kwa mtundu wa full-range kumateteza kujambula kwa ntchito zonse, koma sichingathe kuwonjezeranso ma frequencies omwe sanasampledwe. AMR amawononga nyimbo: yake 8 kHz bandwidth amachotsa zonse pamwamba foni ma frequencies, ndi palibe ndalama ya re-encoding amabweretsa izo kumbuyo.
Kodi AMR mafayilo amachokera ku komwe?
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Mafoni a Voicemail, Push-to-Talk Radios, Old Handset ndi Telephony Recording - kulikonse Audio anayenera kuyenda pa m'mphepete mwa mchenga, mtengo kwambiri channel.That chikhalidwe amafotokoza awiri chifukwa chiyani mavidiyo ndi ochepa ndi chifukwa chake iwo akuoneka mmene iwo achita.Kusintha amawapangitsa kusewera mu mapulogalamu otchuka; si, ndipo sakhoza, kuwonjezera khalidwe la khalidwe la kulandira sanali. AMR ndi Adaptive Multi-Rate, mawu codec 3GPP standardized kwa GSM mawu kulankhula ndi mafoni mawu olemba.
Nchifukwa chiyani fayilo yanga AMR imawonekera popanda dzina la nyimbo kapena ntchito yachikhalidwe?
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Chifukwa cha mtunduwu sikuti uli ndi malo okwanira kuti uzisunga. AMR idafotokozedwa m'mawu okha, popanda malo oyenera kwa dzina, albumi kapena chithunzi cha bokosi, choncho osewera amabwereranso kukuwonetsa dzina la fayilo. Kusintha kwa mtundu wokhala ndi ma tag ndi zomwe zimapangitsa kuti laibulale ikhale yosakata - ma tag amalemba nthawi yosintha, osati kubwezeretsedwanso, choncho muyenera kuyembekezera kuti mudzadzaza chilichonse chomwe chimachokera.
Kupatulapo ngati zinthu zina zimafuna kuti zichotsedwe. Formatiyo imangotsegula, ndipo palibe vuto la kusintha archive yomwe siyikuyambitsa mavuto, koma sikuti ndi komweko kumene ma tool kapena efficiencies akuyenda. Kwa chilichonse chokhudzana ndi zinthu zatsopano, formati yatsopano siyimawononga ndalama zowonjezera ndipo imaletsa kuti nkhaniyi ikhalepo zaka zingapo zapitazo.
Nchifukwa chiyani fayilo ya AMR siyidzasewera mu browser yanga?
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Mawebusayiti amachotsa mawu osakira m'mndandanda wafupi wa mawu osakira ndipo AMR ndi kunja kwa mndandandawu, kotero fayilo imatsitsa popanda kusewera kapena wosewerayo amatumiza vuto. Mapulogalamu a desktop ndi ma codec osiyanasiyana amatsegula popanda vuto. Ngati mawu osakira amayenera kusewera patsamba la webu, kusinthidwa kwake ndi njira yoyenera - palibe kukonzekera kwa wosewerayo kuwonjezera mawu osakira omwe mawebusayiti satumiza.
Kodi ndiyenera kusintha bwanji mafayilo anga a AMR?
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Kugwirizana ndi malo osankhidwa, si cholinga. Kwa nyimbo, 256 mpaka 320 kbps ndi zosaoneka kwa aliyense womvetsera; kwa mawu ndi podcasts, 96 mpaka 128 kbps ndi zambiri ndipo amadula fayilo ku theka. Kulemba mawu kudzera pa ma bitrate ochokera kumawononga malo - amasunga mawu omwe kale apita ku lossy pass ndipo sabwezeretsa chilichonse chomwe chimatulutsidwa ndi wolemba mawu woyamba.
Ndi AMR lossy kapena lossless?
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AMR ndi lossy - encoder amachotsa deta encoder akatswiri kuti azikhala opanda mawu kuti afike pa kukula kwa fayilo yaying'ono.
Kodi ndingatani kuti atembenuke AMR kuti kugawana?
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Kusintha kwa FLAC kapena WAV kuti abwezeretse mtundu wakale, kuwonjezera mavidiyo ndi mavidiyo, ndi kuwonjezera mavidiyo ndi mavidiyo ku FLAC kapena WAV kuti abwezeretse mtundu wakale.
