AMR inonzi narrow-band speech codec yakagadzirwa ne2G/3G mobile networks. AMR inotora mashoko anonzwisisika pabitrates yakaderera kwazvo uye inowanzoshandiswa muvoicemail exports, push-to-talk recordings, uye mafoni ekare ane maficha ezvokutaura. AMR inoita kuti kurekodha kwemashoko kuite sekunge kuri nyore kwazvo – nguva imwe chete yekutaura inotora megabytes mashoma – uye ndiyo inoita kuti mafoni akawanda arambe achirekodha mafoni.
Ndeipi mhando yapfuura yakarasikirwa mu AMR faira?
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Chii chatinenge tichifunga kuti chaive chakakosha, asi chakanga chisina kuwanikwa. AMR chinomanikidza nekuisa zvinyorwa zvacho mumifananidzo, izvo ziso harichazvione - mabhureki anomira pasi pezvombo zvakanyanyisa, mafrequencies panzvimbo dzekunzwa - uye kubvisa zvachose. Pachimiro chehutano bitrate iyo haisi kutaurwa kune vese. Chii chisina kutaurwa chinogona kudzoreredzwa, saka kushandura kune lossless format inochengeta ikozvino mamiriro sezviri nyore kupfuura kudzoreredza zvakanyorwa. AMR i narrowband speech codec ichiita pakati pe4.75 ne12.2 kbps, ichifananidza munhu wechivanhu nechivanhu, asi kwete nezvose zvinotaurwa nezvokutaura.
Nei yangu AMR rekodhi ichinzwa yakaderera kana ichienzaniswa nemusiyano?
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Nekuti hachisi chinhu chakagadzirwa kuti chitore mimhanzi. AMR ndeimwe yemhando dzenhare dzenhare dziri kugadzirwa nevanhu vanoita nhare, dzakagadzirirwa kuchengeta mazwi asinganzwisisike pa bitrate yakaenzana ne kilobits. Zviri kunze kwesimba remunhu richaparadzwa panguva yekutora. Kushandura kuita full-range format kunochengeta kurecord kunogona kushandiswa chero kupi, asi hachigone kuwedzerazve mafrequencies ayo asiri ku sampled. AMR inoravira ndangariro: 8 kHz bandwidth yake inoravira zvese zviri pamusoro pefoni frequencies, uye hapana mari yekudzokorora-kunyora zvinozoidzosera.
Ndeapi ma AMR mafaera anoonekwa seanouya kubva?
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Voicemail systems, push-to-talk radios, older handset and telephony recording — anywhere audio had to travel over a narrow, expensive channel. That heritage explains both why the files are tiny and why they sound the way they do. Converting makes them play in ordinary software; it does not, and can’t, add fidelity the capture never had. AMR i Adaptive Multi-Rate, 3GPP mutauro codec standardized for GSM mashoko kufona uye mobile voice recorders.
Nei yangu AMR faira ichionekwa pasina zita remufananidzo kana artwork?
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Nekuti format haina nzvimbo yekuchengeta mazita aya. AMR yakanyorwa pamusoro pezvombo, pasina nzvimbo yekuti uwane zita, album kana kuti bhokisi rezvinyorwa, saka vatambi vanoramba vachiratidza zita refaira. Kushandura kuita format ine mazita ndechimwe chezvinhu zvinoita kuti library ikwanise kushanyira — mazita anonyorwa panguva yekushandura, kwete panguva yekudzosera, saka funga kuti uchazofanirwa kuisa chero chinhu chisina kuwanikwa musource.
Ndinofanira kuchengeta mavhidhiyo se AMR?
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Kunyangwe kana chimwe chinhu chichida kuitwa. Mufananidzo unoramba uchivhura, uye hapana kuomarara nezvekushandura archive iyo haisi kukonzera dambudziko, asi haisi kusvikira ikozvino uko kugadzirwa kana kugadzikana kunoenda. Kuti uwane chero chinhu chitsva, mufananidzo wenguva dzose hauna kudhura chero chinhu chitsva uye unodzivirira kusangana nenyaya iyi munguva pfupi iri kutevera.
Nei AMR faira risingatamba mubrowser yangu?
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Mabhurawuza anodecode afupi, akavimbika mafomu eaudio uye AMR ari kunze kweiyo, saka faira inorodha pasi sezviri nyore kupfuura kutamba kana mutambi anotaura nyaya yematambudziko. Desktop software ine yakakura codec set inovhura pasina dambudziko. Kana audio inofanirwa kutamba pawebhusaiti, kushandura kwayo kunogona kugadziriswa - hapana mutambi wekuvaka achawedzera decoder iyo browser haisi kutumira.
Ndeipi bitrate inofanira kushandurwa kune yangu AMR faira?
