IRE: Yintoni kuMlinganiselo weMifanekiso yeVidiyo eDityanisiweyo?

ngo kim Ukuhlaziywa: Juni 29, 2022

I-Intereventrectangularity (IRE) ngumlinganiselo wokukhanya okunxulumene nomqondiso wevidiyo, osetyenziselwa ividiyo edibeneyo.

Ilinganiswa ngeeyunithi ezibizwa ngokuba yi-IREs, isikali sika-0-100, kunye ne-0 ibe yeyona imnyama kunye ne-100 ibe yeyona iqaqambileyo.

I-IRE yamkelwe ngokubanzi ngabasasazi abaninzi kunye neenjineli zevidiyo njengendlela yokulinganisa kunye nokulinganisa ukukhanya komqondiso wevidiyo.

Kweli nqaku, siza kuxubusha ukuba yintoni i-IRE kunye nendlela esetyenziswa ngayo kumlinganiselo weempawu zevidiyo ezidibeneyo.

Inkcazo ye-IRE

IRE imele "iZiko leeNjineli zeRadio." Kukukala okusetyenziselwa ukulinganisa imiqondiso yevidiyo edibeneyo, edla ngokuchazwa njengepesenti yereferensi yenqanaba “elimnyama” kunye nencopho yenqanaba elimhlophe (kwiinkqubo zaseMelika) okanye ireferensi emhlophe kunye nencopho yamanqanaba amnyama (kwimigangatho yaseYurophu nakweminye imigangatho). Ixabiso ngokwesiko liboniswa kwiiyunithi ze-IRE kwi-oscilloscope, kusetyenziswa imilinganiselo ukusuka kwi-0 IRE (emnyama) ukuya kwi-100 IRE (emhlophe).

Igama elithi IRE lithatyathwe kwinjineli e-RCA ngeminyaka yoo-1920 kwaye laba kumgangatho ofanayo phakathi kweenjineli zikamabonakude zokulinganisa imiqondiso yevidiyo. Sele yamkelwa yimibutho emininzi yemigangatho yezizwe ngezizwe, ibe ngumlinganiselo owamkelweyo kuzo zombini iireyithi zokuskena umgca weTV kunye nobunzulu bomodyuli. Ekubeni umenzi ngamnye ulinganisa izixhobo zabo ngokwahlukileyo, xa usebenza kwiinkqubo ezininzi kubalulekile ukuqonda la maxabiso ahlukeneyo kwaye ulungelelanise ngokufanelekileyo ukuqinisekisa ukusebenza okufanelekileyo.

Imbali ye-IRE

I-IRE (ebizwa ngokuba 'yi-eye-rayhee') imele i-Institution of Radio Engineers kwaye yasekwa ngo-1912 njengombutho oqeqeshiweyo weenjineli zikanomathotholo. I-IRE iphumeze umgangatho weempawu zevidiyo ezihlanganisiweyo ezibandakanya umlinganiselo weenkcazo ezimnyama nezimhlophe kwisignali yombane enikezelwa kwisixhobo sokubonisa umfanekiso.

I-IRE isetyenziselwe ukulinganisa iintlobo ezahlukeneyo zeempawu zevidiyo, ezifana; I-NTSC, i-PAL, i-SECAM, i-HDMI kunye ne-DVI. I-NTSC isebenzisa inkcazo eyahlukileyo ye-IRE kunezinye iinkqubo, isebenzisa i-7.5 IRE kwinqanaba elimnyama endaweni ye-0 IRE esetyenziswa yimigangatho emininzi eyenza kube nzima ukuthelekisa ezi nkqubo zimbini.

I-PAL isebenzisa i-0 IRE kwinqanaba elimnyama kunye ne-100 IRE kwinqanaba elimhlophe elivumela ukuba lithelekiswe ngokulula kunye nezinye iinkqubo zemibala njenge-NTSC kunye ne-SECAM. Iimpawu zenkcazo ephezulu ezifana ne-HDMI kunye ne-DVI zisebenzisa inkcazo ephezulu ngakumbi enemibala enzulu njenge-16-235 okanye i-16-240 echazwe ngemigangatho ye-HDMI 2.0a apho uluhlu olupheleleyo luyi-230 okanye i-240 ixabiso ngokulandelelana ngokulandela i-16 echaza abamnyama ngelixa i-256 ichaza inqanaba elimhlophe ngokuhambelanayo.

Indlela yangoku iguqukela kwiifomati zedijithali ezifana neHDMI ebambe ngcono ngengxolo yesekethe kodwa isafuna ulungelelwaniso olufanelekileyo kuba neefomathi zedijithali zifuna ungqamaniso oluchanekileyo phakathi kwemiqondiso yokufaka efana nabadlali beDVD, abadlali beBlu-ray okanye iiconsoles zomdlalo ezinokuba nokutolika okwahlukileyo xa kuthelekiswa no. enye nenye malunga neziphumo zemiqondiso eziveliswe ngokunxulumene notshintsho olwenziwe kuzo ngokwembono yomsebenzisi wokugqibela njengokuqaqamba okanye umahluko kumabonakude ngokwawo.

Yintoni IRE?

IRE (Institute of Radio Engineers) sisishunqulelo esiqhele ukusetyenziswa xa kuxoxwa ngemiqondiso yevidiyo edibeneyo. Yiyunithi yomlinganiselo esetyenziselwa ukumisela umahluko, umbala, kunye nokuqaqamba komqondiso wevidiyo, kunye namanqanaba esandi. I-IRE ikwasetyenziselwa ukumisela iifomathi zevidiyo ezidibeneyo kunye nemilinganiselo kwi-analog domain. Makhe sijonge ngakumbi kwi-IRE kunye nezicelo zayo ezahlukeneyo.

Isetyenziswa njani i-IRE kwiiSayini zeVidiyo?

I-IRE, okanye i-Inverse Relative Exposure, yiyunithi yomlinganiselo esetyenziselwa ukumela i-amplitude yesiginali yevidiyo. I-IRE idla ngokusetyenziswa kwimveliso kamabonakude kunye nosasazo lukanomathotholo xa kusenziwa umlinganiselo weempawu zevidiyo. Ngokuqhelekileyo kulinganiswa kuluhlu ukusuka kwi-0 ukuya kwi-100 kwisikali.

Inkqubo yokulinganisa i-IRE isekelwe kwindlela iliso elibona ngayo ukukhanya kunye nombala-ofana noluntu lobushushu bombala olusetyenziswa ngokubanzi kwiinkcazo zokukhanya okumhlophe. Kwiimpawu zevidiyo, i-0 IRE ibonisa ukuba akukho mbane wesignali yevidiyo kunye ne-100 IRE ibonisa ubuninzi be-voltage enokwenzeka (ngokusisiseko, umfanekiso omhlophe wonke).

Xa belinganisa amanqanaba okuqaqamba, abavelisi bezinto zombane basebenzisa iindlela ezahlukeneyo zesikali ezinje ngoonomoyi bemiboniso kamabonwakude elayitiweyo ye-LED okanye iilambu zeenyawo kwizibonisi eziqhelekileyo ezifana neethiyetha bhanyabhanya. Nangona kunjalo, ezi zikali zisekelwe kwikhandlela ngemitha yesikwere (cd/m²). Endaweni yokusebenzisa i-cd/m² njengexabiso lamandla emgceni wolwazi lokukhanya, iisignali ze-analog ngokuqhelekileyo zisebenzisa i-IRE njengeyunithi yayo yokunyuswa kwamandla ombane omgca ukuze kuhlangatyezwane neemfuno zokufumana i-NTSC okanye i-PAL.

Amaxabiso e-IRE asetyenziswa ngokuqhelekileyo kushishino losasazo; Iinjineli zosasazo zithembela kuzo xa zilinganisa izixhobo ezibamba okanye zisasaza iimpawu zevidiyo ezihlanganisiweyo ezifana neekhamera kunye nomabonwakude. Ngokubanzi, iinjineli zokusasaza zisebenzisa amanani phakathi kwe-0-100 xa kulungiswa / kulungiswa amanqanaba eaudio kunye nevidiyo ngexesha lokufota kunye nosasazo.

Ilinganiswa Njani IRE?

I-IRE imele i-Institute of Radio Engineers kwaye yinxalenye yomlinganiselo osetyenziswayo xa kusenziwa umlinganiselo wemiqondiso yevidiyo ehlanganisiweyo. Ilinganiselwa kwii-millivolts (mV) ukusuka kwi-0 mV ukuya kwi-100 mV, ebonisa uluhlu oluqhelekileyo apho iimpawu zevidiyo ezidibeneyo kufuneka ziwe ngokusebenza ngokufanelekileyo.

I-IRE isuka kwi-40 ukuya kwi-120 ngaphakathi kwesakhelo ngasinye sevidiyo kwaye olo luhlu lulonke lwahlulwe lwangamacandelo ngamanqaku esalathiso abizwa ngokuba ngamanqaku e-IRE. Le miqondiso ilinganiswa ukusuka kwi-0 IRE (emnyama) ukuya kwi-100 IRE (emhlophe).

I-0 IRE lilona xabiso lichanekileyo kumnyama wokwenyani kwaye ihambelana malunga ne-7.5 mV peak-to-peak amplitude kuphawu oluqhelekileyo lwe-NTSC okanye nge-1 V peak-to-peak amplitude kuphawu lwePAL.

I-100IRE imele i-100% inqanaba elimhlophe, elilingana ne-voltage ye-signal ye-70 mV i-peak-to-peak kwi-signal ye-NTSC kunye ne-1 ye-Volt i-peak-to-peak kwi-signal ye-PAL; ngelixa i-40 IRE ngaphantsi kwenqanaba elimnyama (-40IRE) kwi-300 mV i-peak-to-peak kwi-signal ye-NTSC okanye i-4 Vand 50% grey ihambelana ne-35IRE (35% isikali esipheleleyo sedijithali).

La manqanaba asetyenziswa njengeengongoma zesalathiso xa kusenziwa umlinganiselo wamanqanaba ahlukeneyo emfanekisweni, njengokuqaqamba ngokupheleleyo okanye isilawuli sokuchasa umfanekiso, iinzuzo zeluma okanye zechroma okanye amanqanaba kunye nezinye iisetingi ezifana nemigangatho yepedestal apho kufanelekileyo.

Iintlobo ze-IRE

Umlinganiselo we-IRE usetyenziselwa ukulinganisa inqanaba le-amplitude ye-analog composite isignali yevidiyo. Imele "i-electrode yereferensi ekhawulezileyo" kwaye isetyenziswa kakhulu kwishishini likamabonakude losasazo. Xa kuziwa kwi-IRE, kukho iindidi ezininzi apho umqondiso ungahlelwa kuzo, ukusuka kwiiyunithi ze-IRE eziqhelekileyo ukuya kwi-NTSC kunye neeyunithi ze-PAL IRE. Kweli nqaku, siza kujonga kwiindidi ezahlukeneyo zemilinganiselo ye-IRE kunye nomahluko phakathi kwazo.

IRE 0

I-IRE (ebizwa ngokuba “yi-eye-reel”) imele i-Institute of Radio Engineers, eyiyunithi yokulinganisa esetyenziselwa ukuvavanya umgangatho womqondiso wevidiyo. I-IRE isetyenziswa xa kusenziwa umlinganiselo wemiqondiso yevidiyo edibeneyo.
Umlinganiselo we-IRE ubalwa ukusuka kwi-0 ukuya kwi-100 kwaye inani ngalinye limele inani le-volts. Ukufundwa kwe-IRE 0 akumelanga umbane ozalanayo konke konke ngelixa i-IRE 100 yokufunda ingamela i-volt eyi-1 okanye inqanaba le-100 lepesenti yokukhanya ngokunxulumene nenqanaba lokungabhalwa nto. Ngaphezu koko, ixabiso le-65 IRE lilingana ne-735 millivolts (mV) okanye i-zero decibels ebhekiselele kwi-volt peak-to-peak (dBV).

Iintlobo ezintathu eziphambili ze-IRE ziquka:
-IRE 0: Ebonisa ukuba akukho mandla ombane, olu hlobo lokulinganisa lunokusetyenziswa ukubala i-overscan kunye ne-underscan kwimifanekiso eskeniweyo.
-IRE 15: Emele malunga ne-25 millivolts (mV), isetyenziselwa ngokukodwa ukulinganisa i-back porch clipping kunye namanqanaba okusetha kwiimpawu zokusasaza.
-IRE 7.5/75%: Emele i-avareji ye-AGC (i-Automatic Gain Control) inqanaba; olu hlobo lomlinganiselo lubonisa uluhlu lokuqaqamba phakathi kwamacandelo anomthunzi ngaphakathi kwesakhelo kunye nezahlulo eziphawulweyo ngaphandle kwesakhelo.

IRE 7.5

I-IRE (Iziko leeNjineli zeRadio) yinxalenye yomlinganiselo osetyenziselwa ukulinganisa iimpawu zevidiyo ezihlanganisiweyo kumabonakude wosasazo. Umlinganiselo wokulinganisa we-IRE usuka kwi-0 ukuya kwi-100, kunye nenqanaba lokuvumelanisa libe yi-7.5 IRE. Oku kuveza i-7.5 IRE njenge "referensi emnyama" emele umnyama ogcweleyo wevidiyo, ochaza ngakumbi uluhlu olupheleleyo lweempawu kwimigangatho yevidiyo efana ne-NTSC kunye ne-PAL.

Kwi-NTSC kunye ne-PAL yeempawu zevidiyo ezihlanganisiweyo, 'imnyama/imnyama kunomnyama' yi-0-7.5 IRE, 'ezantsi ungqamaniso' ngu -40 IRE, 30 'emhlophe' kunye 'iqaqambe kunomhlophe' yi-70-100 IRE ngokulandelelana iphawula igcwele. mhlophe kulo mgangatho othile. Kubalulekile ukuqaphela apha kukuba amaxabiso aphakathi kwe-0-7.5IRE awabonakali kodwa athande ukunceda ekuboneleleni ngongqamaniso oluchanekileyo okanye ulwazi lwexesha olusetyenziswa ngamacandelo ahlukeneyo omabonakude ngelixa efumana/ehambisa imiqondiso yeTV; Ngelixa amaxabiso angaphandle koluhlu 0-100 MAY kwakhona ukuvela kodwa kufuneka kuphetshwe ukuba kuyenzeka njengoko kunokubangela iziphumo ezibi kumboniso/umgangatho wokusebenza wosasazo lukamabonakude.
Umehluko wemifanekiso usebenzisa ii-shades ezahlukeneyo ezihlala kuloo manqanaba kunceda ukukhulisa iinkcukacha zomfanekiso ngokubonakalayo ngokubonakalayo kwinkcazo ephezulu kakhulu kwiiTV ezinkulu zesikrini ezinokuba nzima ukuzibona ngokufanelekileyo usebenzisa ezinye iindlela ze-analog ezifana ne-S-Video okanye iinkqubo ze-eriyali ze-RF.

IRE 15

I-IRE 15, eyaziwa ngokuba yinqanaba elingenanto, yenye yeeyunithi zokulinganisa umqondiso ezisetyenziswa kwividiyo edibeneyo. Isignali yevidiyo edibeneyo ibandakanya i-pulses ethe tye kunye nethe nkqo ye-sync kunye ne-lumnance kunye ne-chrominance data signals. I-IRE (Institute of Radio Engineers) yiyunithi eqhelekileyo esetyenziselwa ukulinganisa i-amplitude yale miqondiso. I-IRE 15 ihambelana ne-voltage ye-voltage ye-0.3 ye-volts ye-peak-to-peak kwi-signal ye-NTSC okanye i-0 volts i-peak-to-peak kwi-PAL signal (NTSC kunye ne-PAL yimigangatho yosasazo lwedijithali).

I-IRE 15 isetyenziselwa ukubonisa xa inxalenye yomfanekiso ingenayo idatha - le ndawo yaziwa ngokuba "indawo engenanto". Ibekwe phakathi kwenqanaba elipheleleyo elimnyama kunye nenqanaba elimhlophe lilonke - ngokuqhelekileyo i-7.5 IRE ngaphantsi kwe-blank blanking iseti kwi-100 IRE. Uluhlu olusuka ku-0 IRE (umnyama uwonke) ukuya kwi-7.5 IRE imisela ukuba umfanekiso ubonakala umnyama kangakanani kwisikrini, nto leyo ebonisa ukukwazi kwawo ukuveza iinkcukacha zesithunzi okanye ukubonakaliswa kobugcisa phakathi kwezibane ezahlukeneyo kunye nemibala.

Xa ulinganisa iimpawu zevidiyo, kubalulekile ukugcina i-7.5 V incopho-ukuya-incochoyi kuzo zonke iinxalenye zomfanekiso ngamaxesha onke kuyo yonke imithombo oceba ukuyibonisa - oku kuya kuqinisekisa umbala ochanekileyo ngaphakathi kwinkqubo yakho yomibini inkcazo esemgangathweni yomxholo we-analog ngokunjalo Iifomati ezisekelwe kwi-HDTV ezifana ne-ATSC, i-1080p/24 njl. Xa ilinganiswe ngokufanelekileyo kunye ne-100% abamhlophe (IRE 100) kwindawo yokukhanya engayi kucaphukisa amehlo xa ujonga imiboniso eqhelekileyo kwimiboniso yeTV okanye iimuvi, ngokwemvelo zonke izithunzi zinokubonwa. kodwa ingaqaqambi kakhulu de ibonakale ingabonakali kunye namanqanaba aliqela abantsundu anokuthi abonakale ngokulula kwaye athandeka kakhulu - Kungenxa yoko le nto ukufikelela kwiisetingi ezifanelekileyo (amanqanaba e-IRE) ngezixhobo zanamhlanje zombane kuye kwabaluleka kakhulu ekuqinisekiseni ukuba ufumana umgangatho. Imifanekiso echanekileyo ephuma kwithiyetha yakho yasekhaya / usasazo lwe-cinema ebukhoma namhlanje!

Iinzuzo ze-IRE

IRE (IEEE Standards Association Radiometric Equivalent) yinxalenye yomlinganiselo osetyenziselwa ukulinganisa iimpawu zevidiyo ezihlanganisiweyo. Le yeyona yunithi ixhaphakileyo yokulinganisa kwizixhobo zevidiyo zobuchwephesha. I-IRE ineenzuzo ezininzi, kubandakanywa ukukwazi ukulinganisa ngokuchanekileyo ukukhanya kunye neempawu ze-chrominance, ezinceda ukudala izinto ezibonakalayo eziphezulu. Kweli nqaku, siza kuphonononga izibonelelo ze-IRE kwaye kutheni ibaluleke kakhulu kumzi mveliso wevidiyo.

UkuVeliswa koMbala okuchanekileyo

I-IRE imele iziko leenjineli zamandla kwaye yaphuhliswa ngo-1938. I-IRE yiyunithi yokulinganisa esetyenziselwa ukulinganisa i-amplitude yesignali yevidiyo edibeneyo. Ekulinganiseni umqondiso wevidiyo edibeneyo, i-IRE ibonelela ngeenzuzo ezininzi, kubandakanya ukuveliswa kombala ngokuchanekileyo.

I-IRE ivumela abafakeli abaziingcali okanye amagcisa ukuba aqinisekise ukuba imibala iphinda yenziwe ngokuchanekileyo kusetyenziswa imonitha yevidiyo xa kulungiswa inkqubo yevidiyo. Iyunithi ye-IRE ayikwazi ukulinganisa kuphela inani lemigca phakathi komnyama nomhlophe okhoyo emfanekisweni, kodwa kunye nokukhanya okuhambelanayo. Ngokuchaneka okunjalo, kulula kwi-installer okanye igcisa ukuqinisekisa ukuba imibala efanelekileyo ibonakala kumboniso wokugqibela womfanekiso.

I-IRE isivumela ukuba simise izixhobo ezihambelanayo ukuze sikwazi ukufezekisa ukuveliswa kombala ngokuchanekileyo kungakhathaliseki ukuba luhlobo luni lwezixhobo ezisetyenzisiweyo. Oku kuqinisekisa ukuba i-shades yemibala ebonwa kwizixhobo ezahlukeneyo iya kuhlala ihambelana kuwo onke amajelo kunye nezixhobo eziphumayo ezibandakanyekayo ekuveliseni imifanekiso okanye imiqondiso yevidiyo. Iimonitha ezilinganisiweyo ngokufanelekileyo okanye iziboniso zinokudlala indima enkulu ekuqinisekiseni ukuba akukho zintlukwano phakathi kweetoni okanye i-shades kwizixhobo ezahlukeneyo ngexesha lokudlala, ekugqibeleni kusinika imifanekiso ecacileyo nebonakalayo ekhangayo kunye neetoni ezikholelwayo ezihambelana nomthombo wethu wokuqala womxholo ngokuchanekileyo.

Ukulawula Ukukhanya Okuchanekileyo

Ukunyuka nokuwa okuHlanganisiweyo (IRE) ngumlinganiselo ovavanya ukuqaqamba kweempawu zevidiyo ezidibeneyo. Lo mgangatho, ophuhliswe yi-American National Television System Committee (ANSTC), ubonelela ngomlinganiselo othembekileyo wokuqina komqondiso onokuthi usetyenziswe kuzo zonke iintlobo zezixhobo zevidiyo kwaye uvumela ulawulo oluchanekileyo lokukhanya.

Iiyunithi ze-IRE zichazwe ngokwepesenti yamanqaku alinganiswe kwisikali ukusuka ku-0 ukuya kwi-100. Isikali se-IRE siphinde sahlulwa sibe ngamaxabiso angama-28 ukusuka ku-0 IRE, nto leyo ebonisa ubumnyama obupheleleyo, ukuya kwi-100 IRE, emele i-peak white. Ubunzulu bomfanekiso, okanye umlinganiselo wokuchasana, udla ngokulinganiswa kuluhlu lwe-IRE lwe-70-100% ngelixa ukukhanya komfanekiso okanye ukukhanya kulinganiswa ngaphakathi koluhlu lwe-IRE lwe-7-10%.

Ngokusebenzisa iinkcazo eziqhelekileyo kunye nemilinganiselo efana neeyunithi ze-IRE kuzo zonke iintlobo zabenzi bezixhobo zevidiyo kunye neechwephesha zinokuchaza ngokuchanekileyo inqanaba elifunekayo lemveliso yesignali yezicelo ezithile ezifana nosasazo lukamabonakude olufuna ulawulo oluchanekileyo phezu kokubini amandla okuntywila kunye nexesha lokunyuka komqondiso. Ukongeza amagcisa anokuqinisekisa ngokuzithemba ukuba nasiphi na isixhobo esinikiweyo sivelisa amanqanaba omqondiso akwimigangatho emiselweyo yokusetyenziswa ngokukhuselekileyo namanye amacandelo kwikhonkco lokulungisa umqondiso.

Ukuphuculwa koMgangatho Wemifanekiso

Itekhnoloji yokwandiswa kwengxelo edibeneyo (IRE) isetyenziswa kwiinkqubo zokucinga ukuphucula umgangatho womfanekiso. Ivumela abaqeqeshi bezempilo ukuba babone iimpawu ezincinci okanye ezifihlakeleyo kwimifanekiso ye-MRI enokuthi ingabonakali ngokusebenzisa ezinye iindlela zokucinga. Inkqubo ye-IRE isebenza ngokunyusa ukuchasana komfanekiso obonisiweyo, okwenza ukuba kubonakale kubukhali kwaye kucace ngakumbi kunangaphambili. Oku kwenza izilonda ezincinci kunye nezakhiwo zezicubu zibe lula ukuchonga kunye nokutolika kwisikrini.

I-IRE inokuphinda isetyenziswe nge-imaging ye-ultrasound, enceda oogqirha ukuba bahlolisise izifo ezinxulumene nosana kunye neentsana ezisanda kuzalwa, ezivumela ukuba babone imiba yesakhiwo okanye izifo zemfuzo ngexesha lokukhulelwa. I-IRE ingasetyenziselwa kunye ne-x-ray imaging evumela oogqirha ukuba bachonge ukuphuka kwamathambo okanye ukungahambi kakuhle kwamalungu, okubenza bakwazi ukubonelela ngoxilongo oluchanekileyo ngokukhawuleza nangokuchanekileyo.

I-URE ikwangoku yamkelwa kwiindawo zonyango lwe-radiation ezifana ne-radiation oncology ukujoliswa ngokuthe ngqo kwamathumba ngexesha lonyango lonyango lwemitha, okukhokelela kwiidosi ezichongiweyo zemitha yemitha ukuze usebenze ngakumbi kwizigulana eziphantsi konyango lomhlaza. Izibonelelo zokusebenzisa iteknoloji ye-IRE zininzi; iphucula ukhuseleko lwesigulane ngokubonelela oogqirha ngamanqanaba aphezulu okuchaneka xa bexilonga iimeko, okubenza bakwazi ukubona izilonda ezincinci okanye izakhiwo zezicubu ezinokuthi ziphosakele ngaphandle koncedo lwe-IRE.

isiphelo

Ukuqukumbela, i-IRE okanye iZiko leeNjineli zeRadio yinxalenye yomlinganiselo osetyenziselwa ukulinganisa iimpawu zevidiyo. Isiginali ye-100-IRE yinqanaba eliphezulu lamandla anokwenzeka kuwo nawuphi na umqondiso wevidiyo onikeziweyo, ngelixa i-0-IRE isignali ilingana ne-volts zero kunye nelona nqanaba liphantsi elinokwenzeka ukuba isignali yevidiyo edibeneyo inokufezekisa. Isikali se-IRE singasetyenziselwa ukulinganisa amandla kunye nokucaca kwawo nawuphi na umfanekiso onikiweyo okanye isignali yomsindo, nokuba iyasasazwa, iboniswe kumabonwakude okanye isasazwe kwi-Intanethi. Iimpawu zevidiyo zilinganiswa ngokunyuka kwe-1 / 100th ye-IRE eqala kwi-0 kwaye iphele kwi-100.

Xa urekhoda iaudio okanye ividiyo, ngokuqhelekileyo kungcono ukurekhoda ngokusondeleyo kwi-0-IRE kangangoko kumgangatho ofanelekileyo wesandi. Ukulungelelanisa amanqanaba ngexesha lokudlala, njengokunyusa ivolyum okanye ukulungelelanisa umahluko kunye nokuqaqamba kunokwenziwa ngaphandle kokukhathazeka malunga nokugqwethwa kokuphazamiseka. Ngaphaya koko, le nkqubo inceda ekuqinisekiseni ukuba zonke iinkqubo zokusetyenzwa kwemiqondiso ehlanganisiweyo zinemilinganiselo engaguqukiyo yokulinganisa okuchanekileyo kunye nokulinganisa phakathi kweenkqubo.

Molo, ndinguKim, umama kunye nomthandi we-stop-motion onemvelaphi kwindalo yemidiya kunye nophuhliso lwewebhu. Ndinothando olukhulu lokuzoba kunye noopopayi, kwaye ngoku ndintywila kuqala kwihlabathi le-stop-motion. Ngebhlog yam, ndabelana nawe ngokufunda kwam.