Kusuka ku-Analog kuya ku-Digital ne-Emuva
Kungakhathaliseki ukuthi usabambelele ngokuqinile kumdlali wakho we-CD, wenze ushintsho ku- unit unit engenamkhawulo, noma imikhuba yakho yokulalela iwela endaweni ethile phakathi kwakho, isipiliyoni sakho sonke somsindo wemoto cishe sinamathele emotweni yakho ye-DAC audio (digital to analog i-converter). Okunye okuhlukile kumsakazo ovamile we- AM / FM , oqala ngesignali ye-analog, kodwa enye imithombo yomsindo emotweni yakho yonke igcinwe kumafomethi edijithali - kungakhathaliseki ukuthi ku-CD engokwenyama noma njengezinkinobho kanye ne-byte ku-flash drive. Ukuze uhumushe lolo lwazi lwedijithali kwisignali ye-analog engakwazi ukushayela izikhulumi zakho - futhi ngaleyo ndlela udale umculo ongayilalela ngempela - kufanele udlulise umguquli wedijithali kuya ku-analog.
Ngakho-ke, yini ngempela, i- DAC , futhi kubaluleke kangakanani lokhu okuyingxenye encane yezobuchwepheshe? Impendulo yombuzo wesibili kulula: i-DAC enhle iyadingeka kakhulu ohlelweni lwesimanje somsindo wemoto. Impendulo yombuzo wokuqala, noma kunjalo, idinga kancane kancane ngokuchazwa.
Kusuka ku-Analog kuya ku-Digital futhi emuva
Umculo, nezinye izinhlobo zokurekhoda komsindo, zonke ziqala njengezibonakaliso ze-analog, futhi ngesikhathi esisodwa zabhalwa namafomethi e-analog. Amarekhodi nama-cassette ahlanganisiwe kokubili izibonelo zamafomethi we-analog media, kodwa ukuqoshwa kwomsindo wesimanje kuye kwasungula endaweni yedijithali - kuqala ngama-CD futhi kamuva namafayela edijithali afana nama- MP3s .
Inhloso yokugcina nokudlulisa umculo, nokunye okuqoshiwe komsindo, kumafomethi wedijithali ngokuyinhloko kuyinkinga yesitoreji kanye nokulula. I-compact disc ingagcina idatha yomsindo owedlula irekhodi noma i-cassette ehambelanayo endaweni encane, kanye nemidiya yesitoreji sedijithali njengamashayeli asebenzayo kanye namashayela e-flash angagcina inani elikhulu kakhulu lemininingwane yomsindo - ngendlela yama-MP3 kanye namanye amafayela - kunalokho.
Emva kokuqoshwa komsindo we-analog kuye kwaguqulwa ibe yidatha yedatha, akusizisebenzisi kangako kuze kube yilapho iguqulwa emuva. Ngenkathi ifomethi yedijithali, isignali ibonakala njengedatha kanambambili engakwazi ukushayela isikhulumi noma ukudala umsindo ozwakalayo uqobo. Ukuze wenze kanjalo, kufanele idluliselwe kudluliselwe kudijithali kuya ku-analog.
I-Digital kuya Ukuguqulwa kwe-Analog
Cishe yonke idivaysi yomsindo encike kumidijithali yedijithali iqukethe isiphequluli se-digital kuya ku-analog. Lokho kuhlanganisa konke kusuka ku- iPod yakho kuya kuyunithi yakho yekhanda. Ezimweni zendawo yaseshashalazini, zikhona ngisho nama-DAC ajwayelekile awenzelwe ukusetshenziswa nabadlali beCD abangabandakanyi i-DAC noma babe nokukhipha kwedijithali. Lezi zingxenye ezimele zivame ukuphakama kwekhwalithi kuneziningi ze-DAC ezakhiwe, ngakho-ke ziyakwazi ukukhiqiza okuthembekile okuthe xaxa kwezignali zangempela ze-analog.
Nakuba kunezinhlobo ezahlukene ze-DAC, bonke benza umsebenzi ofanayo oyisisekelo: ukuguqula idatha engabonakali yedatha ibe isignali engokwenyama engakwazi ukukhuliswa futhi isetshenziselwe ukushayela i-loudspeakers. Lokhu kuvame ukufezwa ngokuguqula ulwazi lwedijithali ibe yisethi ehambelanayo yama-pulses aqhubekile, okuyinto ehlelwa nge-interpolation. Ikhwalithi yesignali ephumela ekuxhomeke kakhulu endleleni iDAC ehamba ngayo mayelana nokufeza lokhu, ngakho ulwazi olufanayo lwedijithali lungahlinzeka ngezinga elizwakalayo elizwakalayo kuye ngokuthi iDAC idlulile.
Izinguquko eziningi zedijithali kuya ku-analog ziqukethwe kwizifunda ezihlanganisiwe ngenxa yobukhulu nezindleko zezindleko, kodwa futhi nama-DAC asebenzisa amathoyizi avumayo ukuze akhiqize umsindo othuthumayo, oningiliziwe.
I-Portable Audio Audio DAC kanye Nezihloko Zezinhloko
I-DAC eningi ephathekayo yenzelwe ukusetshenziswa ngama-laptops, futhi ngokuyinhloko ilayisha ukuphakama okunamandla kokuguqula umculo we-digital kwisignali ye-analog kusuka kwisofthiwe yekhompyutha kuya kudivayisi ebonakalayo. Lolu hlobo lweDAC oluphathekayo lungasetshenziswa nasemotweni yakho, uma unomsindo ozwakalayo okwazi ukukhipha nge-USB futhi iyunithi yakho yekhanda ine-analog input.
Enye indlela ama-DAC aqala ngayo ukudlala ezimotweni ukuthi ezinye izingxenye zekhanda zifaka izimpendulo zedijithali, ngokuvamile ngendlela ye-USB noma i-jack yokuthengisa. Indlela le ndlela yokuxhumeka isebenza ngayo ukuthi ikuvumela ukuba ungene ku-iPhone yakho, ithebhulethi, nanoma iyiphi enye i-MP3 player futhi ulayishe ukucubungula ku-unit unit, kunokuthembela ku-DAC efonini yakho noma kwenye idivayisi.