Lub microphone yog cov khoom siv electroacoustic, lub luag haujlwm tseem ceeb uas yog lub suab nrov thiab suab kaw. Nws yog ib qho tseem ceeb kom nkag siab tias qhov tshwj xeeb ntawm nyias lub microphones yuav txawv nyob ntawm thaj tsam ntawm kev siv ntawm lub cuab yeej. Yog li no, koj yuav tsum txiav txim siab qhov koj xav tau tiag tiag. Raws li qhov no, koj tuaj yeem xaiv cov qauv microphone uas haum tshaj plaws.
Hom ntawm microphones
Qhov nrov tshaj plaws ntawm lub ntsej muag micro yog dynamic thiab condenser. Qhov zoo ntawm thawj hom yog tias nws tsis tas yuav lub zog sab nraud, ntxiv rau, nws cov khoom siv tau yooj yim heev. Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog raws li kev ua haujlwm ntawm lub vov, uas tom qab ntawd xa mus rau cov hlau txhuas tam sim no dhau los ntawm kev sib nqus.
Qhov zoo saib ntawm lub microphone feem ntau yog siv rau kev hais kwv txhiaj, kev ua yeeb yam nyob. Nws tseem siv nyob rau hauv cov ntaub ntawv sau cia. Kuj tseem muaj cov qauv ntawm cov microphones uas tau tsim tshwj xeeb rau cov twj tshwj xeeb - piv txwv li, rau ntau lub nruas.
Qhov kev txiav txim ntawm cov kab hluav taws xob condenser microphone yog ua raws li qhov hloov pauv ntawm qhov muaj peev xwm ntawm qhov hws tau nyob nruab nrab ntawm daim hlau uas cuam tshuam los ntawm lub suab. Cov cuab yeej siv no yuav tsum muaj lub zog hluav taws xob sab nraud. Cov microphones no tau zoo tshaj plaws rau kev ua haujlwm studio (rau lub suab kaw), txij li lawv xa cov suab hauv qhov zoo tshaj plaws thiab huv tshaj plaws.
Txawm li cas los xij, lawv rhiab heev rau cov xwm txheej sab nraud - cov av noo, qhov kub thiab txias, qhov deb mus rau cov khoom siv suab, nrog rau cov suab ntxiv rau. Vim hais tias ntawm cov yam ntxwv no, lawv siv nyob rau hauv "thaj chaw" rau cov neeg mob tau cais tawm. Txawm li cas los xij, muaj cov qauv ntawm hom no uas tuaj yeem siv rau kev ua yeeb yam, piv txwv li, hu nkauj choral. Condenser microphones yuav tsum muab nruab rau cov tuav tshwj xeeb.
Xaiv lub microphone: specifications
Txhawm rau xaiv lub microphone txoj kev, koj yuav tsum nkag siab nws cov yam ntxwv kev, lossis tsawg kawg muaj ib lub tswv yim dav dav txog lawv. Lub suab zoo kis tau tus mob los ntawm:
- tsom xam;
- rhiab siab;
- ntau zaus;
- suab siab tiaj qib.
Qhov ntsuas kev taw qhia piav qhia tau zoo npaum li cas lub microphone tuaj yeem khaws cov suab uas cuam tshuam rau nws los ntawm ntau cov lus qhia. Pom qhov txawv ntawm omnidirectional microphone, bidirectional, hypercardioid, cardioid.
Piv txwv li, yog tias lub microphone yog omnidirectional, nws yuav khaws tag nrho cov suab, tsis hais qhov twg lawv tuaj. Tab sis qhov no tsis yog qhov yooj yim. Yog li, thaum sau cov lus sib tham ntawm txoj kev, nqaim hu xov tooj qhia lub microphone - tus qauv "cannon", yog qhov zoo dua.
Qhov rhiab heev theem qhia yuav ua li cas ntsiag to suab koj lub microphone tuaj yeem ntes tau. Nws yuav tsum raug sau tseg tias hom twj siv capacitor muaj kev nkag siab ntau. Txawm li cas los xij, nws tsis yog tas li, piv txwv li, rau kev sau cov lus hais hauv chav tsis muaj suab nrov lossis ntawm kev. Vim tias lub siab rhiab ntawm omnidirectional microphone, qhov txias yuav ua "qias neeg" nrog ntau lub suab thib peb.
Qhov ntau ntawm cov zaus zaus ntawm lub microphone, qhov zoo dua cov cuab yeej yuav xa suab. Lub suab tswj qib siab qhia txog seb lub suab muaj zog npaum li cas los ntawm kev sib kis tsis muaj cuam tshuam ntawm lub microphone. Qhov taw qhia siab yog 130-140 dB. Qhov ntsuas no tseem ceeb yog tias koj xav siv lub cuab yeej los xa cov suab nrov kom nrov - piv txwv li, nruas yob.
Yuav xaiv lub microphone li cas: cov lus pom zoo
Ntxiv nrog rau cov yam ntxwv kev qhia saum toj no, muaj lwm tus - kev nruj, qhov hnyav, qhov ntev ntawm cable, thiab lwm yam, uas tsis cuam tshuam tshwj xeeb rau lub suab, tab sis ua rau siv cov khoom siv electro-acoustic kom yooj yim dua.
Los ntawm lawv lub hom phiaj, microphones yog:
- rau-koob yees duab;
- lapel;
- phau ntawv;
- desktop;
- raug tshem tawm;
- kev zais cia, uas txuas nrog cov twj paj nruag, thiab lwm yam.
Thaum xaiv lub microphone, koj yuav tsum tseem nco ntsoov tias nws yuav tsum ua cov ntaub ntawv zoo. Ua ntej koj yuav ib lub cuab yeej, nyeem xyuas cov ntawv sib tham txog tus qauv koj nyiam thiab nws cov chaw tsim khoom.
Yog tias koj xaiv lub microphone rau karaoke, ntxiv rau cov yam ntxwv saum toj no, xyuam xim rau qhov cable ntev ntawm lub ntaus ntawv thiab nws cov khoom txuas. Tseem nco ntsoov tias koj yuav xav tau ib lub xov tooj cua ntawm tes. Qhov seem tuaj yeem nyob ntawm koj nyiam thiab pob nyiaj siv.
