1.Ukuhlaziywa Kobuchwepheshe Komsindo Osebenzayo Wokukhansela Ama-headphone
1.1 Ukuhlaziywa kwesimiso sokusebenza samahedfoni asebenzayo okunciphisa umsindo Umsindo wakhiwe i-spectrum ethile namandla.Uma umsindo ungatholakala, i-frequency spectrum yayo ifana ncamashi nomsindo wokungcola okufanele uqedwe, kodwa isigaba siphambene.I-Superposition endaweni ethile ingaqedwa ngokuphelele.Ama-headphone akhanyisa umsindo asebenzayo asebenzisa lesi simiso, ukuphazamiseka okukhulu kwamagagasi omsindo esikhaleni kuqeda ukungcoliswa komsindo.Isistimu engaphakathi kwama-headphone akhansela umsindo osebenzayo iqoqa futhi ihlaziye umsindo, bese iwucubungula ngesekethe eyakhelwe ngaphakathi ukuze ikhiqize ngokukhuthele umsindo wesigaba esiphambene, esingakhanselwa endaweni ethile.Umsindo we-low-frequency unamaza omsindo amade, ngakho-ke kulula ukuphazamisana endaweni, ngakho-ke ubuchwepheshe be-headphone bokukhansela umsindo obusebenzayo bungakwazi ukuqeda umsindo we-low-frequency, futhi bungasetshenziswa njengendlela yokukhansela umsindo. ama-headphone.Isinxephezelo sebhendi yefrikhwensi.
2.2 Ukuhlaziywa Kohlelo Olusebenzayo Lokukhansela Ama-headphone
Kulesi sigaba, ngokuya ngesimiso sokusebenza kanye nesakhiwo sokuklama samahedfoni asebenzayo wokukhansela umsindo, angahlukaniswa ngezinhlobo ezimbili: uhlobo lwempendulo kanye nohlobo lokuphakelayo phambili.Ama-headphone asebenzayo okunciphisa umsindo okuphakela phambili akhiwa ikakhulukazi ama-microphone angaphandle, imithombo yomsindo yesibili, izingxenye zangaphakathi zamahedfoni, namasekhethi asebenzayo okunciphisa umsindo ngokususa indawo yokudlulisela umsindo kude nomthombo wesibili womsindo.Imbobo yomsindo ye-earphone iqoqa umsindo we-ambient wangaphandle.Uma isignali yomsindo iqoqwa imakrofoni yangaphandle, izodluliselwa emthonjeni womsindo wesibili ngesekhethi yokulawula ye-ANC, futhi ayikho iluphu yempendulo.Imingcele yayo ehambisanayo ivame ukulungiswa, ngakho-ke ayikwazi ukwenza ukulungiswa okuguquguqukayo okusheshayo kanye nokulawulwa kwesigaba ngokusho kwezinguquko endaweni yangaphandle, ngakho-ke ukusebenza kwayo okusebenzayo kokunciphisa umsindo kuzothintwa izici zangaphandle futhi kungazinzi, futhi izodlala indima ekuzinzeni okuthile. imisindo.Ingakhiqiza umphumela omuhle wokunciphisa umsindo, kodwa ububanzi bohlelo lokusebenza buzokhawulelwa kakhulu, futhi ngokuvamile buvela emikhiqizweni yamahedfoni esezingeni eliphansi.Isizathu esiyinhloko ukuthi i-headphone incane ngosayizi, futhi ukwakheka kwangaphakathi kokuphakelayo okusebenzayo kokunciphisa umsindo kungabonakala kalula.Impendulo yama-headphone akhansele umsindo asebenza kakhulu akhiwa imibhobho yangaphakathi nemithombo yomsindo yesibili.Yakhiwe izingxenye zangaphakathi ze-earphone kanye nesekethe esebenzayo yokunciphisa umsindo.I-microphone yangaphakathi ingaphakathi kwe-earphone futhi ngokuvamile ibekwe emnyango we-ear canal.Uma imakrofoni yangaphakathi iqoqa umsindo ongena kuma-earphone, izokwenziwa yisekethe ye-ANC yokunciphisa umsindo.Isigaba siphambene ne-amplitude.Isignali yomsindo wesibili ene-frequency efanayo igcina idluliselwe emthonjeni womsindo wesibili, futhi umsindo wesigaba esiphambene ukhishwa ngomthombo womsindo wesibili, ngaleyo ndlela uqaphela umsebenzi osebenzayo wokunciphisa umsindo.Imakrofoni yangaphakathi yempendulo yama-headphone akhanselwa umsindo ngokuvamile iseduze nomthombo wesibili womsindo.Ngokuqoqa umsindo eduze komthombo wesibili womsindo, iluphu yempendulo izophinde yakheke ngaphakathi kwesistimu yokunciphisa umsindo, bese imingcele yokunciphisa umsindo izolungiswa ngokuguquguqukayo.Ukuma kwemakrofoni yangaphakathi eduze komthombo wesibili womsindo kungabonisa ngokunengqondo ngokwengeziwe umsindo ozwakala eduze kokuzwa, ngakho umphumela wokunciphisa umsindo uzoba ngcono, kodwa isakhiwo sangaphakathi sizoba inkimbinkimbi ngokuqhathaniswa.Ngaphezu kwalokho, ngenxa yokuba khona kwe-loop yempendulo, uma uhlelo lokunciphisa umsindo lungaklanywanga kahle, izenzakalo ezingazinzile ezifana nokukhala zizokwenzeka kalula, okubuye kube yinkinga ngalolu hlobo lobuchwepheshe obusebenzayo bokunciphisa umsindo we-headphone.Eminyakeni yamuva, ubuchwepheshe obuhlobene nemikhiqizo ye-elekthronikhi ezweni lami buye bathuthuka ngokushesha futhi ngokushesha, futhi ubuchwepheshe obuhlanganisa ukuphakela phambili kanye nempendulo buye kancane kancane bugxile ocwaningweni.Kodwa-ke, ngenxa yobukhulu besakhiwo sangaphakathi sama-earplugs, amanye ama-earphone aphakathi nendawo ukuya phansi emakethe awakwazi ukusebenzisa ngempumelelo impendulo kanye nobuchwepheshe obuhlanganisiwe bokunciphisa umsindo, futhi iningi labo lisebenzisa isakhiwo sokudlulisela phambili okuphakelayo ukuze kuzuzwe ukunciphisa umsindo.
Eminyakeni yakamuva, ubuchwepheshe bezwe lami obuhlobene nomkhiqizo we-elekthronikhi buthuthuke ngokushesha futhi ngokushesha, buhlanganisa ukuphakela phambili kanye nempendulo
Ubuchwepheshe obuhlanganisiwe buye kancane kancane baba yingqikithi yocwaningo lwabantu.Kodwa-ke, ngenxa yobukhulu besakhiwo sangaphakathi sama-earplugs, amanye ama-earphone aphakathi nendawo ukuya phansi emakethe awakwazi ukusebenzisa ngempumelelo impendulo kanye nobuchwepheshe obuhlanganisiwe bokunciphisa umsindo, futhi iningi labo lisebenzisa isakhiwo sokudlulisela phambili okuphakelayo ukuze kuzuzwe ukunciphisa umsindo.
Isikhathi sokuthumela: Apr-20-2022
