Lub microphone yog ib qho khoom siv hluav taws xob-acoustic uas tsim los hloov suab acoustic rau hauv hluav taws xob cov cim. Los ntawm nws, lub suab yog kaw lossis kis mus rau kev ua kom nrov loj. Dab tsi koj xav tau lub microphone rau (piv txwv li, kaw suab, rau sau cov suab lossis cov twj paj nruag) yog nyob ntawm tus qauv koj xaiv.
Cov Lus Qhia
Kauj ruam 1
Txhawm rau kom xaiv txoj hauv kev, koj yuav tsum paub qhov pib qis ntawm lub microphone:
Suab: Monaural suab - nrog nws lub suab uas zwm rau cov khoom sib txawv, zoo li yog los ntawm tib qho taw tes. Cov suab lus zoo li no ua rau suab nrov distortion thiab cuam tshuam rau kev nkag siab ntawm qhov chaw.
Lub suab Stereo yog ib qhov system uas khaws cov ntaub ntawv hais txog qhov chaw nyob ntawm lub suab los ntawm ob lossis ntau qhov ywj siab audio raws.
Zaus Teb (Hz): Cov no yog cov loj dua los yog qis dua ntawm cov zaus uas cov microphone kaw suab.
Cov kev nkag siab (dB): Tus yam ntxwv no qhia tau hais tias qhov ntsuas hluav taws xob ntau npaum li cas ntawm lub microphone thaum raug rau lub suab nrov. Tus nqi siab dua, qhov xav paub dua ntawm lub microphone yog.
Impedance: Qhov no yog tus nqi ntawm cov tsis kam rau kev hloov pauv tam sim no thiab ntsuas hauv ohms (ohms).
Kauj ruam 2
Hom microphone:
Lub tshuab hluav taws xob txawv yog qhov nrov tshaj plaws thiab hom siv. Piv rau lwm cov qauv, cov microphones uas sib txawv tau muaj ntau qhov zoo: theej tus nqi thiab tib lub sijhawm kev ntseeg tau, nrog rau kev muaj peev xwm ua haujlwm nrog lub suab siab.
Tam sim no, muaj ntau hom xov tooj me me ntawm lub tshuab txav me, piv txwv li, qee qhov ntawm lawv tau tsim tshwj xeeb rau kev khaws lub suab los ntawm lub nruas lossis rau ua si ob lub bass.
Condenser microphones yog hom tshiab dua yav dhau los. Hom microphone no nyuaj dua rau kev tsim khoom thiab, yog li ntawd, ntau ntau kim tshaj li cov xov tooj hu ua dynamic microphones, tab sis lawv muab lub suab zoo dua.
Electret microphones. Qhov sib txawv ntawm hom no los ntawm lwm tus yog tias electret microphones tsis xav tau lub zog sab nraud, tab sis lawv qhov rhiab thiab cov yam ntxwv ntawm tus kheej tsis tshua zoo.
