Hauv cov kab hluav taws xob, XLR cables feem ntau yog siv los txuas lub microphones. Nrog rau kev txhim kho ntawm USB txuas microphones, vim li cas XLR cable tseem xav tau? Kab lus no yuav txheeb xyuas ntxiv XLR cables kom ntxaws.
Ib, Kev sib txuas ntawm XLR cable thiab microphone
Feem ntau cov kws tshaj lij ywj pheej microphones, txawm tias lawv yog cov microphones dynamic, condenser microphones, lossis ribbon microphones, muaj XLR tso zis. Ib yam li ntawd, feem ntau ntawm microphone inputs (txawm hais tias nyob rau hauv ib tug sib tov console, suab interface, adapter, los yog standalone microphone preamplifier los yog processor) muaj XLR inputs. Cov microphone inputs tiag tiag yog 3-pin poj niam XLR connectors.
Saib ntawm tus qauv 3-pin XLR cable, peb yuav pom ob lub ntsiab lus txuas: ib kawg muaj 3-pin XLR txiv neej connector, thiab lwm qhov kawg muaj 3-pin XLR poj niam connector.
1. Tus txiv neej kawg ntawm 3-pin XLR connector muaj 3 pins, uas yog siv los ua plugs. Thaum txuas, ntxig 3-pin XLR txiv neej lub taub hau rau hauv 3-pin XLR poj niam lub taub hau.
2. Peb tus pins ntawm 3-pin XLR poj niam connector ua haujlwm raws li cov sockets, uas tuaj yeem ua rau 3-pin XLR txiv neej connectors thaum txuas.
Yog li ntawd, peb muaj peb yam khoom siv rau kev sib txuas microphone los ntawm XLR:
1. Lub microphone nws tus kheej (ib tug kws microphone nrog XLR tso zis connector).
2. 3-pin XLR cable (tseem hu ua "microphone cable").
3. Microphone input (xav tias peb txuas lub microphone rau lub suab interface hauv qhov piv txwv no).
2, Kev soj ntsuam ntawm Pin Function ntawm XLR Cable
Pin 1: Pin 1 yog av / ntaub thaiv npog hlau. Nws muab cov ntsiab lus siv rau tus pins 2 thiab 3, thiab tseem tuaj yeem txuas rau hauv av ntawm lub microphone thiab / lossis microphone input. Qhov tseem ceeb tshaj plaws, tus pin 1 kuj tseem ua cov txheej txheem cable thaiv, tiv thaiv tus pins 2 thiab 3 los ntawm kev cuam tshuam electromagnetic.
Pin 2: Pin 2 is the live/positive wire. Nws nqa ib daim qauv ntawm qhov zoo polarity suab teeb liab. Nyob rau hauv cov ntaub ntawv ntawm microphone kev twb kev txuas, nws kis tau tus zoo microphone teeb liab los ntawm lub microphone mus rau lub connector microphone input.
Pin 3: Pin 3 is the cold/negative wire. Nws nqa ib daim qauv ntawm lub suab teeb liab nrog qhov tsis zoo (tawm tsam) polarity. Nyob rau hauv cov ntaub ntawv ntawm microphone kev twb kev txuas, nws kis tsis zoo microphone signals los ntawm lub microphone mus rau lub connector microphone input.
Yog li ntawd, lub microphone tso tawm suab teeb liab nrog sib npaug amplitude tab sis opposite polarity ntawm pins 2 thiab 3 (kwv yees rau tus pin 1).
Cov suab nrov ntxaib no tau kis los ntawm kev sib npaug XLR cables thiab xa mus rau lub cuab yeej suab tom ntej. Txhua lub suab interface lub microphone input tej zaum yuav muaj ib tug ua -nyob rau hauv microphone preamplifier. Nyob rau hauv lub microphone preamplifier uas yuav tsum tau microphone theem ntsuas ntawm lub suab, muaj ib tug txawv amplifier.
Qhov sib txawv amplifier ntxiv qhov sib txawv ntawm lub suab teeb liab ntawm tus pins 2 thiab 3 ntawm qhov sib npaug XLR cable. Qhov no ua tau zoo dua ob npaug ntawm qhov amplitude ntawm lub teeb liab microphone thaum tshem tawm qhov sib xws ntawm tus pins 2 thiab 3. Qhov no yog hu ua hom kev tsis lees paub.
