I-Megabytes Izingcingo zami ze-Inthanethi Zidla
Umjikelezo wokubala idatha wokusetshenziswa kwedatha ku-intanethi ukhombisa ukuthi iningi, uma kungebona bonke, alibandakanyi ukusetshenziswa kwedatha ye-VoIP ekucubunguleni ukuthi yini edla idatha yedatha yedatha . Ukusetshenziswa kwedatha ye- VoIP inani lamakhilobytes namagabhaytes osebenzisa kuhlelo lwakho lokuxhumana lokuxhumana ngezwi. Abantu abaningi abasebenzisi uhlelo lwabo lweselula lwezokuxhumana ngezwi , futhi balahlekelwa okuningi. Ukwenza izingcingo zezwi efonini yakho ephathekayo ngaphezu kwedatha yakho yedatha ikuvumela ukuba ulondoloze imali eningi ekuxhumaneni; bheka ukuthi kungani abantu basebenzisa iVoIP . Ngaphandle kwalokho, ukusebenzisa amaminithi wakho wedatha ukwenza izingcingo zezwi kungcono kakhulu kunokusakaza ividiyo noma ukulanda ama-MP3, isibonelo. Ngakho-ke, uma i-VoIP iyinto ekusebenziseni kwedatha yakho yeselula , nansi ukuthi ulinganisela kanjani umkhawulokudonsa owudinga amakholi wezwi inyanga. Ungabe usengeza leyo nzuzo kulokho okubalula kukho ukusetshenziswa kwakho kwedatha .
Zingaki Amaminithi?
Yiba nesilinganiso semaminithi wokubiza oyodinga. Faka phakathi kokubili izingcingo eziphumayo nezingenayo. Lokhu akuwona umsebenzi olula. Enye indlela yokuyidlulisela ngayo ukuthatha inyanga yesampula ngokubheka phansi izingcingo ozenzile futhi ozitholile kanye nezinkathi zabo. Uma une- smartphone , usindiswe ekusebenziseni ipeni nephepha. Ngaphezu kwalokho, ungaba nezinhlelo zokusebenza ezenza umsebenzi kuwe ngemuva.
Uzofuna ukuhlukanisa phakathi kwezinhlobo zamakholi owenzayo. Kukhona izingcingo ezidinga ukuhamba nge-GSM. Uzokhetha i-VoIP yezingcingo ezifana namakholi angaphandle , oxhumana nabo abasebenzisa isevisi efanayo ye-VoIP njengoba wena (lezi zingcingo zikhululekile) noma izingcingo ezikhululekile endaweni yangakini ngokusebenzisa isevisi ethile ye- VoIP (isib. Bheka ukushaya kwe-Gmail ).
Inani lama-Bytes liqedile
Ukuze wazi ukuthi ziningi kangakanani izingxoxo zezwi ezithandwayo, udinga ukwazi ukuthi iyiphi i-codec isevisi yakho ye- VoIP esebenzisa. I-codec iyinjini yokucindezela eguqula izwi lakho (analog) libe yidatha yedijithali, isuse isikhathi esicacile (esenza isigamu sazo zonke izingxoxo), futhi wenze ezinye izinto ukunikeza ukulayisha kwedatha njengokukhanya ngangokunokwenzeka. Funda kabanzi kuma-codec lapho.
Nazi amanani afanayo okusetshenziswa kwedatha yama- codec ajwayelekile kakhulu asetshenziselwa i-VoIP:
I-G.711 - 87Kbps
I-G.729 - 32 Kbps
I-G.723.1 - 22 Kbps
I-G.723.1 - 21 Kbps
I-G.726 - 55 Kbps
I-G.726 - 47 Kbps
I-G.728 - 32 Kbps
Lezi zimiso zizokunika udaba lokubala. Isibonelo, ngomzuzu owodwa wokukhuluma ne-c.7ec ye-G.729, sizokwenza lokhu okulandelayo:
I-G.729 ithatha amakhilogremu angu-32 ngesigamu,
okungama-kilobits angu-1920 (60 x 32) ngomzuzu owodwa,
okuyi-240 kilobytes (KB) ngomzuzu (1 byte yi-8 bits)
Manje lokho kungenxa yedatha kuphela. Idatha engenayo (ebuyelayo) ithatha umthwalo ofanayo, ngakho-ke sinciphisa isibalo esingu-480 KB.
Okokugcina, singakwazi ukuzungeza ukubaluleka ku-0.5 MB ngomzuzu wengxoxo.
I-c.7ec ye-G.729 ingenye yama- codec wezwi elihle kakhulu futhi izinsizakalo eziningi ezinhle zeVoIP ziyisebenzisa.
Kumele uqaphele ukuthi kunamapharamitha amaningi, afana nemvelo ngokwemvelo, ethinta amanani angenhla. Phakathi kwazo kukhona usayizi (ukukhokhela) wepakethe yezwi, izikhathi lapho zithunyelwa khona kanye nenani lamaphakethe athunyelwe ngomzuzwana owodwa (imvamisa). Kwabaningi bethu, lokho esikufunayo yisilinganiso sokulinganisa. Ngakho-ke, singakwazi ukuqeda kalula ukunemba. Futhi, singase singazi ukuthi iyiphi i-codec esetshenziswayo. Ngomuntu siqu, ngithatha inani elilinganiselwe lama-kbps angu-50 kunoma iyiphi i-codec. Lokhu kunikeza (emva kokubala nokulinganisa) 0.75 MB ngomzuzu wengxoxo.
Ngakho-ke, uma uhlela ihora lokuxoxa, kuyoba cishe 45 MB.