Bizinesi Yatsopano

1.Technical Analysis of Active Noise Canceling Headphones
1.1Kuwunika kwa mfundo zogwirira ntchito zochepetsera phokoso zomvera zomvera Phokoso limapangidwa ndi ma frequency angapo ndi mphamvu.Ngati phokoso lingapezeke, mawonekedwe ake afupipafupi ndi ofanana ndendende ndi phokoso la kuipitsidwa kuti lichotsedwe, koma gawolo ndilosiyana.Superposition mu malo enieni akhoza kuthetsedwa kwathunthu.Mahedifoni oletsa phokoso amagwiritsa ntchito mfundo iyi, kusokoneza kwakukulu kwa mafunde mumlengalenga kumathetsa kuipitsidwa kwa phokoso.Dongosolo lomwe lili mkati mwa mahedifoni oletsa phokoso limasonkhanitsa ndikusanthula phokosolo, kenako ndikuliyendetsa kudzera mudera lomwe lamangidwa kuti lipange phokoso la gawo lina, lomwe limatha kuthetsedwa pamalo enaake.Phokoso lotsika kwambiri limakhala ndi mafunde ataliatali, kotero ndikosavuta kusokonezana wina ndi mnzake mumlengalenga, kotero kuti ukadaulo woletsa phokoso loletsa phokoso limatha kuthetsa phokoso lotsika, komanso lingagwiritsidwe ntchito ngati kuletsa phokoso lopanda phokoso. mahedifoni.Malipiro a frequency band.
2.2 Kuwunika kwa Active Noise Kuletsa Mahedifoni Ogwira Ntchito
Pakadali pano, malinga ndi mfundo yogwirira ntchito komanso kapangidwe kake ka mahedifoni oletsa phokoso, amatha kugawidwa m'mitundu iwiri: mtundu wa mayankho ndi mtundu wa chakudya chamtsogolo.Mahedifoni ochepetsa phokoso a feed forward amapangidwa makamaka ndi maikolofoni akunja, magwero amawu achiwiri, zida zamkati za mahedifoni, komanso mabwalo ochepetsa phokoso posuntha malo otulutsa mawu kutali ndi gwero lachiwiri lamawu.Phokoso la phokoso la m'makutu limasonkhanitsa phokoso lakunja lozungulira.Chizindikiro cha phokoso chikasonkhanitsidwa ndi maikolofoni akunja, chidzatumizidwa ku gwero lachiwiri la phokoso kudzera mu dera lolamulira la ANC, ndipo palibe phokoso la ndemanga.Magawo ake ofananira nthawi zambiri amakhala osasunthika, kotero sangathe kuchita zosinthika mwachangu ndikuwongolera gawo molingana ndi kusintha kwa chilengedwe chakunja, kotero kuti ntchito yake yochepetsera phokoso imakhudzidwa ndi zinthu zakunja ndikukhala yosakhazikika, ndipo idzachita nawo gawo lina lokhazikika. phokoso.Itha kutulutsa phokoso labwino lochepetsera phokoso, koma kuchuluka kwa ntchito kumakhala kochepa kwambiri, ndipo nthawi zambiri kumangowoneka pamakutu otsika.Chifukwa chachikulu ndikuti mahedifoni ndi ocheperako kukula, ndipo kapangidwe ka mkati ka chakudya cham'mutu chochepetsera phokoso kumatha kuzindikirika mosavuta.Mahedifoni oletsa mawu oletsa phokoso amapangidwa makamaka ndi maikolofoni amkati ndi magwero achiwiri amawu.Zimapangidwa ndi zigawo zamkati zam'makutu zam'makutu ndi dera lothandizira kuchepetsa phokoso.Maikolofoni yamkati imakhala mkati mwa earphone ndipo nthawi zambiri imayikidwa pakhomo la ngalande ya khutu.Maikolofoni yamkati ikasonkhanitsa phokoso lolowa m'makutu, imapangidwa ndi ANC yochepetsera phokoso.Gawoli ndi losiyana ndi matalikidwe.Chizindikiro chachiwiri chomveka chokhala ndi mafupipafupi omwewo potsirizira pake chimaperekedwa ku gwero la phokoso lachiwiri, ndipo phokoso la gawo lotsutsana limatulutsidwa kupyolera mu gwero lachiwiri la phokoso, potero kuzindikira ntchito yochepetsera phokoso.Maikolofoni yamkati ya mayankho omwe amaletsa phokoso la mahedifoni nthawi zambiri amakhala pafupi ndi gwero lachiwiri lamawu.Posonkhanitsa phokoso pafupi ndi gwero lachiwiri la phokoso, phokoso la ndemanga lidzapangidwanso mkati mwa dongosolo lochepetsera phokoso, ndiyeno magawo ochepetsera phokoso adzasinthidwa moyenerera.Malo a maikolofoni amkati pafupi ndi gwero lachiwiri la phokoso amatha kuwonetsa bwino phokoso lomwe limamveka pafupi ndi kumva, kotero zotsatira za kuchepetsa phokoso zidzakhala bwino, koma mawonekedwe amkati adzakhala ovuta.Kuonjezera apo, chifukwa cha kukhalapo kwa phokoso la ndemanga, ngati dongosolo lochepetsera phokoso silinapangidwe bwino, zochitika zosakhazikika monga kulira zidzachitika mosavuta, zomwe zimakhalanso vuto ndi teknoloji yamtunduwu yochepetsera phokoso.M'zaka zaposachedwa, ukadaulo wokhudzana ndi zinthu zamagetsi m'dziko langa wakula mwachangu komanso mwachangu, ndipo ukadaulo womwe umaphatikiza kudyetsa patsogolo ndi mayankho pang'onopang'ono wakhala cholinga cha kafukufuku.Komabe, chifukwa cha kukula kwa kapangidwe ka mkati mwa ma earplugs, makutu ena am'makutu apakati mpaka otsika pamsika sangathe kugwiritsa ntchito bwino mayankho ndi maukadaulo ophatikizika ochepetsera phokoso, ndipo ambiri aiwo amagwiritsa ntchito njira yopititsa patsogolo chakudya kuti akwaniritse kuchepetsa phokoso.

M'zaka zaposachedwa, matekinoloje okhudzana ndi zinthu zamagetsi mdziko langa apangidwa mwachangu komanso mwachangu, kuphatikiza chakudya ndi mayankho.
Ukadaulo wophatikizika pang'onopang'ono wakhala cholinga cha kafukufuku wa anthu.Komabe, chifukwa cha kukula kwa kapangidwe ka mkati mwa ma earplugs, makutu ena am'makutu apakati mpaka otsika pamsika sangathe kugwiritsa ntchito bwino mayankho ndi maukadaulo ophatikizika ochepetsera phokoso, ndipo ambiri aiwo amagwiritsa ntchito njira yopititsa patsogolo chakudya kuti akwaniritse kuchepetsa phokoso.