Mu zida zomvera, mphamvu ya chipangizo cholankhulira mawu imatchedwa mphamvu yake yosinthira magetsi kukhala mawu kapena mawu kukhala magetsi.

Komabe, kuchuluka kwa mphamvu ya mawu m'makompyuta apakhomo sikukhudzana mwachindunji kapena kukhudzidwa ndi mtundu wa mawuwo.

Sitinganenedwe mophweka kapena mopitirira muyeso kuti ngati wokamba nkhani ali ndi mphamvu zambiri, ndiye kuti mawu ake amakhala abwino. Zachidziwikire, sitingakane mwachindunji kuti wokamba nkhani yemwe ali ndi mphamvu zochepa ayenera kukhala ndi mphamvu zochepa. Mphamvu ya wokamba nkhani nthawi zambiri imatenga 1 (watt, W) ngati mphamvu ya chizindikiro cholowera. Ikani maikolofoni yoyesera mita imodzi mwachindunji patsogolo pa wokamba nkhani, ndipo ngati muli ndi wokamba nkhani wozungulira mbali zonse ziwiri, ikani maikolofoni pakati pa mayunitsi awiri a wokamba nkhani. Chizindikiro cholowera ndi chizindikiro cha phokoso, ndipo kuchuluka kwa kuthamanga kwa mawu komwe kumayesedwa panthawiyi ndi mphamvu ya wokamba nkhani.

Wokamba nkhani wokhala ndi ma frequency ambiri amakhala ndi mphamvu yolankhula bwino, mphamvu zambiri zimapangitsa kuti mawu azimveka mosavuta, mphamvu zambiri zimapangitsa kuti mawuwo akhale okhazikika komanso otetezeka, okhala ndi ma curve oyenera komanso kulumikizana koyenera komanso koyenera, komwe sikungayambitse kusokonekera chifukwa cha kugwiritsa ntchito mphamvu mkati. Chifukwa chake, imatha kubwereza mawu osiyanasiyana mwachilengedwe, ndipo mawuwo amakhala ndi mphamvu zambiri, kulekanitsa bwino, kuwala, kumveka bwino, komanso kufewa. Wokamba nkhani wokhala ndi mphamvu zambiri komanso mphamvu zambiri sikuti ndi wosavuta kungolankhula, komanso chofunika kwambiri, mphamvu zake zapamwamba kwambiri mkati mwa malo okhazikika komanso otetezeka zimatha "kugonjetsa khamu la anthu", ndipo mphamvu yofunikira ya mawu ingapezeke popanda kufunikira mphamvu zambiri kuti iyendetse.

Pali mitundu yambiri yodziwika bwino ya ma speaker odalirika pamsika, koma mphamvu yawo si yokwera (pakati pa 84 ndi 88 dB), chifukwa kuwonjezeka kwa mphamvu ya mawu kumabweretsa kusokonekera kwa mawu.

Kotero monga wolankhula wodalirika kwambiri, kuti muwonetsetse kuti mawu ndi luso lake lotha kubwerezabwereza lilipo, ndikofunikira kuchepetsa zofunikira zina. Mwanjira imeneyi, mawuwo amatha kukhala olinganizidwa mwachilengedwe.

Chowunikira Chogwira Ntchito cha M-15AMP

Kodi mphamvu ya mawu ikakwera, zimakhala bwino, kapena ndi bwino kukhala pansi?

Kuchuluka kwa mphamvu ya wokamba nkhani, kumakhala bwino. Kuchuluka kwa mphamvu ya wokamba nkhani, kukwera kwa mphamvu ya mawu ya wokamba nkhani pansi pa mphamvu yomweyo, komanso kukwera kwa mphamvu ya mawu yomwe wokamba nkhani amapereka. Kuchuluka kwa mphamvu ya mawu yomwe imapangidwa ndi chipangizocho pamalo enaake pamlingo winawake wolowera (mphamvu). Kuchuluka kwa mphamvu ya mawu = 10 * mphamvu ya log + kukhudzidwa.

Kwenikweni, pa kuwirikiza kawiri kwa kuchuluka kwa kupanikizika kwa mawu, kuchuluka kwa kupanikizika kwa mawu kumawonjezeka ndi 1dB, koma pa kuwonjezeka kulikonse kwa 1dB mu sensitivity, kuchuluka kwa kupanikizika kwa mawu kumatha kuwonjezeka ndi 1dB. Kuchokera apa, kufunika kwa sensitivity kungawonekere. Mu makampani opanga mawu aukadaulo, 87dB (2.83V/1m) imaonedwa ngati gawo lotsika ndipo nthawi zambiri limakhala la okamba ang'onoang'ono (mainchesi 5). Sensitivity ya okamba abwino imapitirira 90dB, ndipo ena amatha kufika pamwamba pa 110. Kawirikawiri, kukula kwa okamba kumakhala kwakukulu, ndipo sensitivity imakwera.

Wokamba Nkhani Wonse Wanjira Ziwiri