A cikin layi na zamani, haruffan AMR sun takaice don Maɗaukakin Mutuwar da ke da dangantaka da tsarin AMR. Wannan tsarin fayil na audio, wanda aka fara fitar da shi a 1999, yana da matukar tasiri a compressing da adanar rikodin murya idan aka kwatanta da nau'ukan da aka saba da su kamar MP3 , WMA , da AAC . Tsarin hasara ne da fayilolin da aka gano tare da .amr tsawo - ban da wannan doka shine cewa za'a iya amfani da tsarin kwakwalwar 3GP don adana raguna AMR tare da bidiyon. Ba zato ba tsammani, irin wannan fasahar muryar murya yana wani lokaci ana kiransa azaman murya.
Alamar AMR Narrowband da Wideband
Akwai matakan AMR guda biyu da suka dace AMR-NB da AMR-WB. Na farko (AMR-NB), wani ɓangare ne wanda ke amfani da ita a lokuta da rashin saurin bitar ya isa - kamar sautin murya na ainihi wanda za ka iya samu akan na'urar MP3 . Hakanan da ake amfani dashi AMR-NB shine 300-3400 Hz wanda zai iya samar da kyakkyawan sauti wanda ya dace da wayar tarho. Wannan fitinar ta amfani da amfani bitrates:
- 04.75 kbps
- 05.15 kbps
- 05.90 kbps
- 06.70 kbps
- 07.40 kbps
- 07,95 kbps
- 10.20 kbps
- 12.20 kbps
Siffar ta biyu na AMR ita ce nau'in ƙanananbandar wanda aka wakilta ta acronym, AMR-WB. Kamar yadda sunan zai ba da shawara, wannan murya ne mai ingantaccen wanda yayi amfani da bandwidth mafi girma fiye da AMR-NB domin adana murya a mafi girman halayen - iyakar mita da aka yi amfani dashi shine wannan 50 -7000 Hz. Ƙididdigar da aka yi amfani da ita don AMR sune:
- 06.60 kbps
- 08.85 kbps
- 12.65 kbps
- 14.25 kbps
- 15.85 kbps
- 18.25 kbps
- 19.85 kbps
- 23.05 kbps
- 23.85 kbps
Saboda karfin wutar lantarki mafi girma kuma sabili da haka mafi girman magana, AMR-WB an ƙaddamar don amfani a GSM (Global System for Mobile Communications) da kuma UMTS (Kayan Wutar Harkokin Sadarwar Harkokin Sadarwar Duniya) - wanda aka sani da cibiyoyin sadarwa na 2G da 3G kamar haka.
Amr. MP3 don Muryar Murya
Kodayake shirin MP3 yana iya kasancewa mafi mahimmanci a cikin layi, ba dacewa ba (idan aka kwatanta da AMR) idan yazo magana. Harshen AMR, a gefe guda, yana da kyakkyawan aiki a irin wannan aiki kuma shine tsarin da aka fi so yayin da hardware da software ba su da tallafi.
Aikace-aikacen da ake amfani da shi na AMR wanda za ku iya zuwa a cikin kiɗa na dijital yana amfani da na'ura mai ɗaukar hoto (kamar MP3 ko smartphone) don kama sauti; yawancin masu kunna MP3 a waɗannan kwanan nan suna ninka a matsayin masu rikodin murya ta amfani da makullin haɗin ƙirar haɗin ciki. Don yin amfani da ingancin ƙwaƙwalwar ajiya ta MP3 - musamman ma idan samfurin lantarki ya zama tushen - mai samar da na'urar zai iya zaɓar yin amfani da tsarin AMR. Fayiloli a cikin tsarin AMR suna da ƙananan ƙananan ƙananan fiye da yadda aka saba amfani da su - kamar MP3, AAC, WAV, da kuma WMA.