AMR (Adaptive Multi-Rate) is an audio format optimized for speech compression.
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 nevanhu vanotaura, kwete nezvose zvinotaurwa nevanhu.
Nei yangu AMR rekodhi ichinzwa yakaderera kana ichienzaniswa nemusiyano?
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Nekuti hachisi chinhu chakagadzirwa kuti chitore mimhanzi. AMR ndeimwe yemhando dzenhare dzefoni dziri kugadzirwa nekushandisa mumafoni efoni, dzakagadzirirwa kuchengeta mazwi anzwisisike pa bitrate yakaenzana ne kilobits. Zviri kunze kwesimba remunhu richaparadzwa panguva yekutora. Kushandura kuita full-range format kunochengeta kurecord kunogona kushandiswa chero kupi, asi hazvigone 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 standardized speech codec yeGSM voice calls 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.
