Rau ib puas xyoo thiab ib nrab ntawm qhov muaj nyob ntawm cov ntaub ntawv, nws cov thev naus laus zis tsis tau hloov pauv qhov tseem ceeb. Nyob rau saum npoo ntawm cov ntaub ntawv muaj ib tug zawj, thaum lub sij hawm txoj kev uas lub koob vibrates, thiab cov vibrations yog hloov dua siab tshiab rau hauv ib tug audible signal.
Txoj kev khaws cov ntaub ntawv suab ntawm cov kab ntawm cov disks ua cov kauv kuj tseem siv rau cov xov xwm niaj hnub no, txawm li cas los xij, hauv digital binary code.
Rau ntau xyoo lawm, LP (ua si ntev) thiab EP (ib tus lej ib sab) cov ntaub ntawv yas tau yog lub hauv paus ntawm lub suab zoo rau cov neeg nyiam suab paj nruag thoob ntiaj teb. Ob qho tib si disc manufacturing technology thiab cov cuab yeej tsim tawm tau hloov kho tas li. Thaum kawg ntawm lub yim caum ntawm lub xyoo pua XX, lawv mus txog, nws yuav zoo li, ua tiav zoo tag nrho, thiab tam sim ntawd tau dhau los ua kev siv, muab txoj hauv kev rau kho qhov muag digital media.
Txhua lub turntable muaj ob yam tseem ceeb: lub rotating sawv thiab nqa. Ob lub ntsiab lus tau hloov kho thiab txhim kho nyob rau hauv keeb kwm ntawm cov ntaub ntawv.
Nyob rau hauv gramophones thiab gramophones, mechanical motors tau siv, uas yog raws li ib tug mainspring, thiab cov uniformity ntawm kev sib hloov yog guaranteedmechanical stabilizers.
Tom qab ntawd los txog lub sijhawm rau lub tshuab hluav taws xob, uas muaj kev ruaj ntseg ntau dua ntawm qhov nrawm nrawm, tab sis kuj xav tau kev ntsuas ntxiv kom tswj tau qhov ceev. Lub apogee ntawm kev ua tiav hauv kev daws teeb meem ntawm kev sib hloov ntawm kev sib hloov yog lub turntable nruab nrog quartz stabilizer.
Cov khoom nqa kuj tau dhau los tsis muaj qhov cuam tshuam tsawg dua, mus los ntawm rab koob gramophone txuas nrog lub membrane mus rau qhov nyuaj electromechanical system uas yuav tsum tau kho kom raug, kho thiab them nyiaj. Lub turntable zoo heev feem ntau zoo li impressive, nws tonearm, nruab nrog counterweights thiab anti-skating, muab lub tswv yim ntawm ib tug high-tech ntaus ntawv, uas nws yog.
Flaws hauv mechanical
uas cov ntaub ntawv, tau kawg, muaj. Txhua qhov kev puas tsuaj rau saum npoo ntawm cov ntaub ntawv tuaj yeem cuam tshuam rau lub suab zoo, ua rau nyem, hnia thiab lwm yam tsis zoo rau kev ua si.
Tsis zoo li CDs, ib qho EP lossis LP tsis tuaj yeem ua si tsis kawg ntawm lub sijhawm, lawv hnav thiab "txiav", txawm tias cov neeg ua yeeb yaj kiab siab npaum li cas. Cov pa phem kuj cuam tshuam nrog kev lom zem ntawm cov suab paj nruag, thiab tshem tawm lawv yog ib qho kev tshawb fawb tag nrho. Txawm tias kev khaws cia ntawm "txheej txheem" yog qhov tseem ceeb heev. Cov resin uas lawv tau ua yog amorphous thiab yuav khoov raws sijhawm.
Txawm hais tias qhov ua tiav thiab tsis muaj xwm txheej yeej ntawm digital discs, kev kaw lus analog tsis tau poob rau hauv kev xav tsis thoob. Muagvinyl, ntawm chav kawm, tau tsis kam. Nyob rau tib lub sijhawm, cov ntaub ntawv tau dhau los ua cov khoom lag luam tseem ceeb tsim rau cov neeg nyiam suab paj nruag uas ntseeg tias tsuas yog gramophone kaw tau muab cov suab paj nruag zoo nkauj, ntuj tsim thiab "nyob".
Lub turntable tseem tsis tau mus rau hauv qeb ntawm cov khoom tsis tsim nyog thiab vim tias LP sau, qee zaum sau tau ntau xyoo, muaj cov ntaub ntawv tsis tshua muaj siab rau lawv cov tswv. Muaj peev xwm cov neeg sawv cev ntawm cov tiam tom ntej, txheeb xyuas cov niam txiv, yuav txaus siab rau cov nkauj uas lawv "cov poj koob yawm txwv" tau mloog.
