Ntau Thoob Plaws Ntug Ntawm Cov Yeeb Yaj Vev Vev Xa

Ntau yam ntawm kev sib tham video

Kev sib tham video yog maj mam hloov ntawm kev lag luam siab tom kawg mus rau kev lag luam tsawg kawg thiab nruab nrab, thiab lawv cov kev siv mus txuas rau thaj chaw xws li kev sib koom ua lag luam, kev lag luam hauv kev lag luam, kev sib txuas lus hauv kev sib txuas, kev cob qhia lwm tus, thiab chaw ua lag luam.

Tshwj xeeb yog tom qab cov tuam txhab thiab tsoom fwv cov koom haum pom txog lub luag haujlwm ntawm kev sib tham video thiab kev siv tus nqi-ntxiv, kev sib tham video yog maj cov kev nkag mus rau hauv cov neeg txuas network thiab tsoom fwv e-tsoom fwv.

Cov kev sib tham thaum ntxov video tau siv hauv tsoomfwv thiab cov neeg siv lag luam loj. Tam sim no video conferencing systems yog maj hloov ntawm high-end saab kev lag luam kom qis-kawg thiab nruab nrab-kev lag luam. Lawv siv deb tshaj qhov cov kev sib tham ntawm cov kev sib tham hauv cov rooj sib tham thiab cov rooj sablaj, thiab cov kev qhia ntawm kev siv rau hauv Internal kev sib txuas, kev sib koom tes ua lag luam, kev lag luam hauv kev lag luam, kev kawm mus rau chaw ua haujlwm, chaw ua haujlwm thiab chaw ua haujlwm. Tshwj xeeb tom qab cov tuam txhab thiab tsoom fwv cov koom haum pom txog lub luag dej num ntawm kev sib tham video thiab kev siv tus nqi ntxiv, kev sib tham video yog maj cov kev sib koom tes rau cov neeg tes hauj lwm thiab tsoom fwv tes hauj lwm. Qhov kev thov rau rooj sib tham thiab cov rooj sib tham yog muaj zog.

Tam sim no, qhov paub tab thiab cov cuab yeej technology nyob hauv kev lag luam yog video video conferencing raws li H.320 lossis H.323 tus qauv. Lub Hoos H.320 yog ib txoj hauv kev sib koom tes rau cov kev sib txuas lus ntawm circuit-switched, thiab H.323 system yog qhib kev sib txuas rau cov tes hauj lwm sib pauv hloov. H.323-based IP video conferencing system maj mam pom los ntawm cov neeg siv kev lag luam. Xav txog kev sib haum xeeb thiab kev sib koom tes, cov khoom lag luam hauv khw muag khoom 'video khoom txhawb H.320 thiab H.323 dual-hom kev lag luam los tiv thaiv neeg siv peev. Nrog rau kev txhim kho ntawm lub computer xam zauv thiab qhov kev ua txuas ntxiv hauv network, software video conferencing systems raws li MPEG4 video compression qauv tau ntau dua thiab paub tab, thiab tau txais kev txhawb los ntawm cov lag luam me me thiab nruab nrab.

Video conferencing solutions yog tshwj xeeb heev, thiab cov neeg siv cov kev xav tau, cov ntsiab lus venue, thiab network ib puag ncig yog txhua yam los xav txog. Video conferencing yuav tsum muaj kev ua haujlwm siab tiag tiag. Thaum xaiv ib qho kev sib tham video video rau ib lub tuam txhab, nws tseem ceeb heev yuav tsum tau them sai sai rau lub network ib puag ncig thiab muab qhov sib thooj hauv kev sib tham hauv video sib tham. Rau cov neeg siv kev lag luam, kev ruaj ntseg thiab kev sib tham ntawm video zoo yog qhov tseem ceeb. Vim muaj kev sib koom tes, kev sib tham video video tau siv nyob rau hauv cov koom tes ntiav ntau xyoo dhau los. Nyob rau hauv lub tshav pob ntawm kev sib tham video, H.320 systems yeej. Nyob rau hauv xyoo tas los no, nrog kev txhim kho thiab kev loj hlob ntawm tes hauj lwm broadband, kev ruaj ntseg thiab kev ntseeg tau ntawm IP tes tau raug kho dua, thiab daim ntawv thov H.323 video conferencing systems raws li IP networks tau tsim sai heev. Txawm li cas los xij, qhov teeb meem QoS raws li tus IP network tsis tau muaj kev tsim kho teeb meem. Tej teeb meem xws li network jitter, packet disorder, thiab kev siv lub voj voos yuav ua rau muaj kev ruaj ntseg ntawm qhov kev sib tham ua kom tsawg. Thaum qhov teeb meem loj heev, lub rooj sib tham kuj tsis tuaj yeem ua ntau zaus. Tam sim no, qhov kev sib tham hauv chav sib tham hauv chav sib tham hauv chav sib tham video yuav tsum muaj bandwidth ntawm 384K. Hauv daim ntawv thov, ib lub private network thiab ib tus IP private network feem ntau yuav tsum tau, thiab cov neeg siv cov uas tsis tshua muaj cai xav siv Internet.