AMR Isiguquli

Tshintsha AMR ukuya nokubuya kwiifomathi ezahlukeneyo

Malunga AMR

I-AMR yi-codec yokuthetha elungele ukurekhodwa kwelizwi kunye noqhagamshelwano lwefowuni, oko kukuthi, iingoma zengoma zidla ngokubi kuyo.

Iindlela Ezisetyenziswa Ngazo Eziqhelekileyo

Voice recordings
Mobile audio
Telephony

AMR Imibuzo Ebuzwa Rhoqo Ngokuguqula

Yintoni i-AMR yefayili yesandi?

I-AMR yi-narrow-band speech codec eyaqala isetyenziswa yi-2G/3G mobile networks. I-AMR ithatha ilizwi eliqondakaliyo kwi-bitrates ephantsi kakhulu kwaye iqhelekileyo kwi-voicemail exports, ucinezelo-ukuxoxa urekhodo, kunye ne-feature-phone voice memos edala. I-AMR isenza ukuba urekhodo lwesandi lube luncinci kakhulu - iyure enye yokuthetha ilungele ii-megabytes ezimbalwa - kwaye yiyo loo nto ifowuni ezininzi zihlala zirekhoda kuyo uqhagamshelwano.

Ingaba umgangatho sele ulahlekile kwifayili AMR?

Into na leyo ikhowudi yokuqala yagqiba ukuyisusa, ayikwazi ukubuyiselwa. AMR icindezela ngokuyila into ethe indlebe ayizukuyiqaphela - iingoma ezimdaka ezihlala phantsi kwezi zikhulu, ukuphindaphinda kumazantsi okuva - kwaye isuse ngokusisigxina. Kwi bitrate elungileyo engaziwayo kuninzi lwaba bonke. Into engayiyo ibuyiselwa, ngoko ukuguqula kwifomati engalahleki igcina iimeko zangoku kunokuba ibuyisele eyakuqala. I-AMR yi-codec yokuthetha ehamba phakathi kwe-4.75 ne-12.2 kbps, imodelisa umjelo wokuthetha womntu kunokuba iqulethe i-audio spectrum.

Kutheni le nto urekhodo lwam AMR luza kuziva luncinci xa kuthelekiswa nengoma?

Kuba ayikho injongo yayo ukuhambisa umculo. AMR yi codec yokuthetha ethe nkqo eyenziwe kuthungelwano lweselula, elungelelaniswe ukugcina amagama acacileyo kwi bitrate eqikelelwa kwi kilobits yesiqhelo. Yonke into ngaphandle koluhlu lwelizwi lomntu ilahliwe ngexesha lokuqwalasela. Ukuguqula kwifomati yoluhlu olupheleleyo igcina ushicilelo lusetyenziswa naphi na, kodwa ayikwazi ukongeza kwakhona ukuphindaphinda okungazange kusampuliswe. I-AMR ibulala umculo: ububanzi besantya sayo esiyi-8 kHz bususa konke okungaphezulu kwesantya sefowuni, kwaye akukho xabiso lokucofa kwakhona olungayibuyisela.

Iifayile AMR zivela phi?

Iinkqubo zeposi yelizwi, i-radios ezitsala-ukuthetha, i-handset edala kunye noshicilelo loqhagamshelwano - naphi na apho umsindo wayehamba ngaphezulu kwendlela encinci, ebiza kakhulu. Eli lifa lichaza ukuba kutheni iifayile zincinci kwaye kutheni zithetha ngendlela abayenzayo. Ukuguqula kwenza ukuba zidlale kwisoftware eqhelekileyo; ayikwazi, kwaye ayikwazi, ukongeza ukuthembeka okucaphukisayo. I-AMR yi-Adaptive Multi-Rate, i-codec yokuthetha ye-3GPP emiselwe kwi-GSM yezingxoxo zelizwi kunye nezixhobo zokurekhoda ilizwi elihambayo.

Kutheni le nto ifayili yam AMR ivela ngaphandle kwegama lengoma okanye imifanekiso engumzobo?

Kuba ifomati ayikho naphi na ukugcina. AMR yacaciswa ngaphaya kwesandi sayo, ngaphandle kwendawo eqhelekileyo yesihloko, i-albham okanye umfanekiso wesiqulathi seefayili, ngoko abadlali babuyela umva ukuboniswa kwegama lefayili. Ukutshintsha kwifomati ephawulweyo kwenza ithala leencwadi likwazi ukutyelela - ii-tags zibhalwe ngexesha lokuguqula, kunokuba zibuyiselwe, ngoko lindele ukugcwalisa nantoni na eyamkelwa ngumbhali.

Ingaba ndimele ndigcine iifayili ezintsha njenge AMR?

Ukuba into ephantsi kwendlela ifuna oku. Ifomati iyaqhubeka ivula, kwaye akukho mcimbi wokuguqula uvimba ongazibangela iingxaki, kodwa ayikwazi ukuqhubeka apho isixhobo okanye usebenziso luya khona. Kwanoma iyiphi into entsha, ifomati yangoku ayihlawuli nto engaphezulu kwaye ikhusela umjikelo olandelayo wombuzo kwiminyaka emininzi ukusuka ngoku.

Kutheni le nto ifayili AMR ayidlalwanga kwisikhangeli sam?

Iibrawuzeri zikhupha ikhowudi kuluhlu olufutshane, oluqinileyo lweefomati zesandi kwaye AMR lungaphandle kwayo, ngoko ifayile ikhupha ezantsi endaweni yokudlala okanye umdlali uxela impazamo. Isoftware yedesktop ene codec ebanzi ivula ngaphandle kwengxaki. Ukuba isandi kufuneka idlala kwiphepha le web, ukuguqula kuyilungisa - akukho mdlali wokumiselwa kwenkqubo uza kudibanisa ikhowudi ekhupha ikhowudi ibrawuzeri ayithuthi.

Yintoni i-bitrate ekufuneka ndiyiguqulele iifayile zam AMR?

Uthelekiso lwendawo ebekwe kuyo, hayi umthombo. Kwingoma, 256 ukuya 320 kbps icacile kuye wonke umntu ofundayo; kwilizwi kunye nepodcasts, 96 ukuya 128 kbps ininzi kwaye iqulethe ifayile kwakhona. Ukukhowuda ngaphezulu komthombo we bitrate kusezantsi kwesithuba - igcina ngokunyanisekileyo isandi esisele sidlula kwindlela elahlekile kwaye ayibuyiseli nto ikhowudi yokuqala elahlekile.

Ingaba i-AMR ilahlekile okanye ayilahleki?

I-AMR ilahlekile — i-encoder isusa i-data i-encoder igqiba ukuba ayithethi ukuba ifike kubungakanani befayili encinci.

Yintoni endingayenza ukuba ndiguqule i-AMR ibe yiyo ukuze ndiyisebenzise?

Ukwabelana nge-imeyili kunye nemidiya yoluntu, guqula i-AMR ibe yi-MP3 — ukudlala okubanzi kunye nobungakanani befayili encinci. Ukwabelana ngokuthembekileyo nabalandeli besandi, guqula ibe yi-FLAC okanye i-WAV ukugcina umgangatho ophambili.