Los ntawm Analog rau Digital thiab Tom Qab
Txawm hais tias koj tseem tab tom tuav nruj rau koj cov neeg ua si CD, koj tau hloov mus rau lub taub hau lub taub hau , lossis koj tus cwj pwm mloog tsis tau qee qhov ntawm, tag nrho koj lub tsheb suab tau zaum ua rau koj lub suab DAC (digital kom analog converter). Qhov kos yog cov pa AM / FM xov tooj , uas pib tawm nrog lub teeb liab analog, tab sis lwm qhov chaw suab nyob hauv koj lub tsheb yog txhua yam muab cia rau hauv cov hom digital - seb puas yog nyob rau hauv lub cev CD los yog li cov khoom thiab cov bytes ntawm lub flash drive. Yuav kom txhais cov ntaub ntawv digital rau hauv ib lub teeb liab analog uas muaj peev xwm tsav tsheb rau koj cov neeg tham - thiab yog tsim cov suab paj nruag koj tuaj yeem mloog - nws muaj kom dhau los ntawm ib qho digital rau analog converter.
Yog li, dab tsi, raws nraim, yog DAC , thiab tseem ceeb npaum li cas yog qhov kev siv tshuab me me? Lo lus teb rau lo lus nug thib ob yog ib qho yooj yim: ib qho zoo DAC yog qhov tseem ceeb tshaj plaws hauv lub tsheb niaj hnub siv lub suab. Lo lus teb rau thawj lo lus nug, li cas los xij, yuav tsum muaj me ntsis ntxiv ntawm kev piav qhia.
Los ntawm Analog rau Digital thiab Rov Qab Los
Suab paj nruag, thiab lwm yam ntaub ntawv ntawm cov suab kaw, tag nrho cov pib ua analog Pib ntsais koj teeb, thiab nyob rau hauv ib lub sijhawm lawv tau kaw hauv analog hom. Cov ntaub ntawv thiab compact cassettes yog ob qho piv txwv ntawm analog xov xwm tawm tswv yim, tiam sis niaj hnub suab cov ntaub ntawv tau tshaj tawm txij thaum lub nroog loj - thawj cov CDs thiab tom qab nrog cov ntaub ntawv xws li MP3s .
Lub hom phiaj ntawm kev khaws cia thiab xa suab paj nruag, thiab lwm cov suab kaw, hauv cov hom qauv yog qhov teeb meem ntawm qhov chaw cia thiab kev yoojyim. Lub compact disc yuav khaws cov ntaub ntawv ntau dua los ntawm cov ntaub ntawv los yog cov ntaub ntawv compact cassette nyob hauv qhov chaw tsawg dua, thiab digital cia cov xov xwm xws li nyuaj drives thiab flash drives yuav khaws ib tug ntau dua ntawm cov ntaub ntawv suab - hauv cov ntawv MP3s thiab lwm cov ntaub ntawv - tshaj qhov ntawd.
Tom qab cov ntaub ntawv teev digital analog tau muab hloov mus ua cov ntaub ntawv digital, nws yog siv me ntsis kom txog rau thaum nws hloov dua siab tshiab. Thaum nyob hauv digital hom ntawv, lub teeb liab yog cov ntsiab lus uas tsis paub meej txog binary uas tsis tuaj yeem tsav tus neeg hais lus lossis tsim lub suab nrov ntawm nws tus kheej. Yuav kom ua tau li ntawd, nws yuav tsum dhau los ntawm cov zauv rau analog hloov khoom.
Cov xov tooj rau Analog Conversion
Zoo txhua lub suab uas cia siab rau digital xov xwm muaj digital rau analog converter. Qhov ntawd suav txhua yam ntawm koj lub iPod mus rau koj lub taub hau. Nyob rau hauv tsev ua yeeb yaj kiab cov ntsiab lus, nws tseem muaj qhov DACs uas tau tsim los siv nrog cov CD players uas tsis yog los ntawm DAC los yog muaj digital tawm. Cov chav nyob ntawm qhov sawv cev no feem ntau siab dua nyob rau hauv zoo tshaj li ntau DACs built-in, yog li ntawd lawv muaj peev xwm ua kom muaj kev ncaj ncees dua reproductions ntawm tus thawj analog tseg.
Txawm hais tias muaj ntau hom DACs, lawv sawv daws ua tib qho kev ua haujlwm: hloov cov ntaub ntawv kho cov ntaub ntawv qub rau hauv lub cev teeb liab uas tom qab ntawd yuav ua kom nrov thiab siv cov lus nrov nrov. Qhov no feem ntau ua tiav los ntawm kev hloov cov ntaub ntawv digital rau hauv cov txheej txheem uas tau hloov ntawm cov pulses, uas yog tom qab ntawd tawm ntawm kev nkag mus. Qhov zoo ntawm cov teeb liab tshwm sim yog ib qho uas ua raws li DAC tau hais txog qhov ua tiav qhov no, yog li cov ntaub ntawv digital kuj muab tau ntau lub suab zoo li ntawm DAC nws dhau los.
Feem ntau cov digital rau analog converters yog muaj nyob ntawm cov kev sib txuas ntawm lub cev vim qhov loj thiab tus nqi tuav tseg, tiam sis kuj muaj DACs uas siv lub tshuab nqus tsev los ua cov cua sov, muaj lub ncauj lus kom ntxaws.
Portable Car Audio DACs thiab Head Units
Feem ntau DAC cov khoom siv yog tsim los siv nrog cov laptops, thiab lawv yeej tseem thim qhov kev tshem tawm cov kev hloov suab paj nruag los ua ib qho teeb liab ntawm lub computer software mus rau lub cev ntaus ntawv. Hom portable DAC no yuav siv tau rau hauv koj lub tsheb thiab, yog tias koj muaj lub suab qhov chaw uas muaj peev xwm tawm ntawm USB thiab koj lub taub hau muaj ib cov lus qhia analog.
Lwm txoj kev uas DACs tuaj mus ua si hauv tsheb yog tias qee lub taub hau muaj cov khoom siv, xws li daim ntawv tso cai ntawm USB los yog tus nplua nuj. Txoj kev uas qhov kev sib txuas ua haujlwm no yog qhov uas nws tso cai rau koj txuas rau hauv koj lub iPhone, ntsiav tshuaj, los yog lwm yam MP3 neeg uas ua ntawv thiab tso tawm ua haujlwm rau lub taub hau, tsis txhob siv lub DAC hauv koj lub xov tooj lossis lwm yam khoom.