Kodi kukhudzika kwa wokamba ndi chiyani?

Pazida zomvera, kukhudzika kwa zida zoyankhulira kumatchedwa kuthekera kwake kosinthira magetsi kukhala mawu kapena mawu kukhala magetsi.

Komabe, kuchuluka kwa zomverera m'mawu omvera kunyumba sikukhudzana mwachindunji kapena kukhudzidwa ndi mtundu wa mawu.

Sizingangoganiziridwa mophweka kapena mopambanitsa kuti kukhudzika kwa wokamba nkhani kumapangitsa kuti phokoso likhale labwino.Zoonadi, sikungatsutsidwe mwachindunji kuti wokamba nkhani wanzeru ayenera kukhala ndi mawu osamveka bwino.Kukhudzika kwa wokamba nkhani nthawi zambiri kumatenga 1 (watt, W) ngati mphamvu yolowera.Ikani maikolofoni yoyesera 1 mita kutsogolo kwa wokamba nkhani, ndipo kwa njira ziwiri zoyankhulira, ikani maikolofoni pakati pa mayunitsi awiri a wokamba nkhani.Chizindikiro cholowetsamo ndi chizindikiro chaphokoso, ndipo mulingo wa kukakamiza kwa mawu panthawiyi ndikukhudzika kwa wokamba nkhani.

Wokamba nkhani wokhala ndi mafupipafupi ambiri amakhala ndi mphamvu zowonetsera mphamvu, kutengeka kwakukulu kumapangitsa kuti zikhale zosavuta kumveka, mphamvu zapamwamba zimapangitsa kuti zikhale zokhazikika komanso zotetezeka, zokhala ndi ma curve oyenerera komanso kugwirizana koyenera komanso koyenera kwa gawo, zomwe sizidzasokoneza chifukwa cha kugwiritsira ntchito mphamvu mkati.Chifukwa chake, imatha kutulutsa mowona komanso mwachilengedwe mamvekedwe osiyanasiyana, ndipo mawuwo amakhala ndi malingaliro amphamvu a utsogoleri, kulekanitsa bwino, kuwala, kumveka bwino, komanso kufewa.Wokamba nkhani wokhala ndi chidwi chachikulu komanso mphamvu yayikulu sikuti amangomveka mosavuta, koma koposa zonse, kuchuluka kwake kwamphamvu kwamawu m'malo okhazikika komanso otetezeka kumatha "kuchulukirachulukira", ndipo kuchuluka kwamphamvu kwamawu komwe kumafunikira kutha kupezeka popanda kufunikira. mphamvu zambiri kuyendetsa.

Pali mitundu yambiri yodziwika bwino ya oyankhula okhulupilika pamsika, koma kukhudzika kwawo sikuli kwakukulu (pakati pa 84 ndi 88 dB), chifukwa kuwonjezeka kwa chidziwitso kumabwera pamtengo wowonjezereka wopotoka.

Chifukwa chake monga wokamba mokhulupirika kwambiri, kuti awonetsetse kuchuluka kwa kutulutsa mawu komanso kutulutsa mphamvu, ndikofunikira kuchepetsa zofunikira zina.Mwanjira iyi, phokoso likhoza kukhala loyenera mwachibadwa.

njira ziwiri zoyankhula zonse1

M-15AMP Active Stage Monitor

 

Kodi kukhudzika kwamphamvu kwa kamvekedwe ka mawu ndikwabwinoko, kapena ndikwabwino kutsika?

Apamwamba tilinazo, bwino.Kuchuluka kwa kukhudzika kwa wokamba nkhani, kumapangitsa kuti phokoso likhale lamphamvu la wokamba nkhani pansi pa mphamvu yomweyo, komanso phokoso lomwe limatulutsa ndi wokamba nkhani.Kuthamanga kwa mawu komwe kumapangidwa ndi chipangizocho pamalo enaake pamlingo wina wolowera (mphamvu).Kuthamanga kwa mawu = 10 * logi mphamvu + kumva.

Kwenikweni, pakuwirikiza kulikonse kwa mulingo wa kukakamiza kwa mawu, kuchuluka kwa mawu kumawonjezeka ndi 1dB, koma pakuwonjezeka kulikonse kwa 1dB, mphamvu ya mawu imatha kukwera ndi 1dB.Kuchokera apa, kufunika kwa kukhudzidwa kungawonekere.M'makampani omvera akatswiri, 87dB (2.83V/1m) imawonedwa ngati yotsika kwambiri ndipo nthawi zambiri imakhala ya oyankhula ang'onoang'ono (5 mainchesi).Kukhudzika kwa olankhula bwino kudzapitirira 90dB, ndipo ena amatha kufika pamwamba pa 110.

njira ziwiri zokamba zonse2(1)

Sipikala wanjira ziwiri zonse


Nthawi yotumiza: Jul-28-2023