Amakhamera adijithali ashintsha izithombe ezihambayo zibe idatha yedatha. Le datha yevidiyo, ebizwa ngokuthi ama- bits , igcinwa kwimidiya yokugcina njengememori khadi ye-flash, i-DVD, noma i- disk drive .
Inani lemininingwane erekhodiwe kunoma yiliphi lesibili elibizwa ngokuthi i- bit rate noma i- bitrate , futhi ngamakhamera, kulinganiswa ngamagagits (izigidi eziyizigidi ezilodwa) ngomzuzwana (Mbps).
Kungani Kufanele Uzinakekele?
Ukulawula isilinganiso esincane akusho nje kuphela ukucacisa ikhwalithi yevidiyo oyiqophayo, kodwa nokuthi uzokwazi ukurekhoda isikhathi esingakanani ngaphambi kokuphuma kwimemori. Kodwa-ke, kukhona ukuhweba: i-high quality / high-bit rate video kusho isikhathi sokuqopha esifushane.
Ungakhetha ukuthi yikuphi isikhathi esibaluleke kakhulu-ukurekhoda noma ikhwalithi yevidiyo-ngokulawula inani le-camcorder's bit. Lokhu kwenziwa ngokusebenzisa izindlela zokuqopha ze-camcorder. Lezi zindlela zibizwa ngekhwalithi ephezulu, ejwayelekile, futhi irekhodi elide .
Imodi yekhwalithi ephakeme inezinga elincane kakhulu, lithatha inani eliphakeme lemininingwane. Amamodi amarekhodi amade azoba namanani aphansi, okunciphisa inani lemininingwane yokwelula izikhathi zokurekhoda.
Ngabe I-Bit Bit Matter Isingakanani?
Njengomthetho jikelele, akudingeki ukuba uqaphele isilinganiso sakho kancane ngenkathi usebenzisa ikhamera. Vele uthole imodi yokurekhoda evumelana nezidingo zakho futhi nonke usethe. Uma uthenga i-camcorder, noma kunjalo, amazinga okuqonda angafinyelela kahle, ikakhulukazi uma ehlola amakhamera amaningi aphezulu .
Ama-camcorders amaningi we-HD awakwazi ukuthi "i-HD egcwele" futhi anikele nge-1920x1080 isinqumo sokuqopha. Noma kunjalo, akuwona wonke ama-camcorders aphelele e-HD aqoshiwe ku-bitrate esiphezulu efanayo.
Cabanga nge-Camcorder A ne-Camcorder B. Camcorder A amarekhodi we-1920x1080 ividiyo ku-15 Mbps. I-Camcorder B irekhoda ividiyo engu-1920x1080 ku-24 Mbps. Bobabili banesinqumo esifanayo sevidiyo, kodwa i-Camcorder B inezinga elincane eliphakeme. Zonke izinto zilingana, i-Camcorder B izokhiqiza ividiyo yekhwalithi ephezulu.
Ukufanisa Imemori
Izinga elincane liphinde libheke uma unayo ikhamera ye-memory card-based camcorder. Amakhadi enkumbulo anezinga lawo lokudlulisa idatha, elinganiselwe kuma-megabytes ngomzuzwana noma MBps (1 megabyte = ama-megabits angu-8).
Amanye amakhadi enkumbulo aphuza kakhulu ngamakhamera wezinga eliphezulu, kanti amanye ayashesha kakhulu. Bayoqhubeka beqopha, kodwa uzokhokha ngaphezulu ngesivinini ongasidingi.
Ingabe Uzobona Umehluko?
Yebo, uzobona umehluko, ikakhulukazi ekugcineni kwe-spectrum, phakathi kwezinga elincane kunazo zonke nokuphansi kakhulu. Esilungiselelweni sezingeni eliphansi kunazo zonke, kungenzeka ukuthi ubone izinto zobuchwepheshe zedijithali, noma ukuphazamiseka, kuvidiyo. Njengoba usuka kwesilinganiso esisodwa kuya kwesilandelayo, izinguquko ziyinkimbinkimbi.
Yisiphi Isilinganiso Okufanele Usibhalise Kuzo?
Namathela esilinganisweni esincane kunazo zonke nokulungiselelwa kwekhwalithi ongakwenza, uma unememori eyanele. Ungakwazi njalo ukuthatha ifayela levidiyo eliphakeme (okungukuthi, ifayela elikhulu lemininingwane) futhi ulihlehlise nge-software yokuhlela. Kodwa-ke, ukuthatha ifayela eliphansi nekhono lekhwalithi yalo ngokungeza idatha engenakwenzeka.