AMR Isiguquli

Guqula AMR kuya futhi kusuka kumafomethi ahlukahlukene

Mayelana AMR

I-AMR (I-Adaptive Multi-Rate) ifomethi yokuminyanisa yomsindo elungiselelwe ukubhalwa kwekhodi yenkulumo. Ivamise ukusetshenziswa kumakhalekhukhwini ukuqoshwa kwezwi nokudlalwa komsindo.

Ukusetshenziswa Okuvamile

Voice recordings
Mobile audio
Telephony

AMR Imibuzo Evame Ukubuzwa Yokuguqulwa

Yini ihele lomsindo le-AMR?

I-AMR iyi-codec yokukhuluma esebenzisa i-bandband encane esetshenziswa kuqala yi-2G/3G mobile networks. I-AMR iqoqa ukukhuluma okuqondene ne-bitrates ephansi kakhulu futhi ivame ukukhishwa kwe-voicemail, ukurekhodwa kwe-push-to-talk, kanye ne-feature-phone voice memos. I-AMR yenza ukurekhodwa kwezwi kube ncane kakhulu - ihora lokuxoxa lifaka ama-megabytes ambalwa - futhi yilokho okunye amafoni amaningi aqhubeka nokurekhoda ukufona.

Ingabe ubuhle bulahlekile kuhele AMR?

Noma yini encoder yakuqala ekhetha ukuyisusa, futhi ayikwazi ukubuyiselwa. AMR icindezela ngokumodela lokho okungekuqaphela indlebe - imisindo ekhululekile ehlala ngaphansi kwezikhulu, iziqongo eziphezulu zokulalela - futhi isuse ngokuqhubekayo. Ku-bitrate ephephile engeke ikwazi ukulizwa yinoma ngubani. Okunye okungaba khona kubuyiselwa emuva, ngakho ukushintshana kufomethi engalahleki igcina isimo samanje ngaphandle kokubuyisela okungaphambilini. I-AMR iyi-narrowband speech codec esebenza phakathi kuka-4.75 no-12.2 kbps, emodela i-human vocal tract endaweni yobubanzi obugcwele be-audio spectrum.

Kungani i-AMR yami irekhoda izwakala incane uma iqhathaniswa nomculo?

Ngenxa yokuthi ayikho into eyenza ukuthi ithathe umculo. AMR yi-narrowband speech codec eyenziwe nge-mobile networks, elungele ukugcina amagama acacile ku-bitrate elinganiselwa kuma-kilobits we-digit eyodwa. Konke okungaphandle kwe-range yezwi lomuntu kulahlekile ngesikhathi sokuqapha. Ukushintshana ku-full-range format igcina ukurekhodwa kusebenziseka kuwo wonke amathuluzi, kodwa ayikwazi ukufaka emuva iziqongo ezingazange zisampuliswe. I-AMR ibulala umculo: i-8 kHz bandwidth yayo isusa konke okuphezulu kwe-frequency yefoni, futhi akukho inani lokuphindeka kokucofa liyibuyisela emuva.

Ingabe amafayela AMR avame ukuvelaphi?

Ama-voicemail systems, push-to-talk radios, old handsets and telephony recording — lapho i-audio idinga ukuhamba khona ngaphezu kwe-channel encane, ebiza kakhulu. Lo mzali uchaza ukuthi kungani amafayela encane nokuthi kungani ezwakala ngendlela ayenza ngayo. Ukushintshana kwenza ukuthi badlala kwisofthiwe ejwayelekile; ayisebenzi, futhi ayikwazi, ukufaka ukuthembeka okuncane okungekho. I-AMR iyi-Adaptive Multi-Rate, i-codec yokukhuluma i-3GPP ejwayelekile yezingcingo zokukhuluma ze-GSM nezinhlelo zokurekhoda amagama ezimoto.

Kungani ihele lami AMR livela ngaphandle kwegama lesiqongo noma isithombe?

Ngenxa yokuthi ifomu alikho indawo efanele yokuzigcina. AMR yacaciswa ngaso sonke isikhathi ngaso sonke isikhathi, ngaphandle kwendawo ejwayelekile yesihloko, i-album noma isithombe sokuzivikela, ngakho abadlali babuyela emuva ukukhombisa igama lefayela. Ukushintshana kufomethi ephawuliwe kwenza i-library ifinyeleleke — amathegi abhalwe ngesikhathi sokuguqulwa ngaphezu kokubuyiselwa, ngakho-ke cabanga ukugcwalisa noma yini engingakhombisi i-source.

Ingabe kufanele ngigcine amafayela amasha njenge AMR?

Uma nje kukhona okuthile okudingayo. Ifomethi ivuliwe, futhi akukho sidingo sokushintsha ingobo yomlando ongeke ukwenze kube nzima, kodwa akuyona indawo lapho ithuluzi noma umphumela uhamba khona. Kunoma yini entsha, ifomethi yamanje ayidingi lutho olungeziwe futhi ivimbela ukulandelana kwesifundo seminyaka eminingana kusukela manje.

Kungani ihele AMR alidlalwa kumsakazo wami?

Amabhuleki aqopha uhlu oluncane, oluqinile lwefomethi yomsindo futhi AMR ungaphandle kwalo, ngakho ihele likhuphuka endaweni yokudlala noma umdlali ukhombisa iphutha. Isofthiwe yedesktop enesethingi se-codec esibanzi ivula ngaphandle kwezinkinga. Uma umsindo udlala kukhasi le-web, ukushintsha kuyinto elungile — akukho ukumiswa komdlali kuzongeza umbhalo oqoshiwe umbhukeli awuthumeli.

Yini i-bitrate okufanele ngiyiguqule amafayela ami AMR?

Uhlu lwendawo esiya kuyo, hhayi umsuka. Ukudlalwa kwengoma, 256 kuya ku-320 kbps kucacile kuwo wonke umuntu olalelayo; ukukhuluma nokulalela ipodcasts, 96 kuya ku-128 kbps kuningi futhi kushiya ihele ngaphesheya. Ukungenisa umsindo ngaphezu komsuka we-bitrate kulahlekile isikhala — kugcina umsindo osele udlulele nge-lossy pass futhi akubuyiseli lutho umngenisi wokuqala olahlekile.

Ingabe i-AMR ilahlekelwa noma ayilahlekelwanga?

I-AMR ilahlekile — umqokodisi ususa idatha umqokodisi ecabanga ukuthi ayikwazi ukulizwa ukuze ifike kubukhulu befayela elincane.

Yini okufanele ngiguqule i-AMR ukuze ngiyihlukanise?

Ukuthumela i-imeyili nokusebenzisana kwemidiya yomphakathi, guqula i-AMR ibe yi-MP3 — ukusakazwa okuphelele nobukhulu befayela elincane. Ukusebenzisana okuphezulu-nokuzinikela nabangani besandi, guqula ube yi-FLAC noma i-WAV ukuze ugcine ubuhle bokuqala.