1.Technical Analysis yeActive Noise Kudzima Mahedhifoni
1.1 Ongororo yemusimboti wekushanda weanoshanda ekudzikisa ruzha mahedhifoni Inzwi rinoumbwa neimwe frequency spectrum uye simba.Kana ruzha ruchigona kuwanikwa, frequency spectrum yaro yakangofanana neruzha rwekusvibisa runofanira kubviswa, asi chikamu chakapesana.Superposition mune imwe nzvimbo inogona kubviswa zvachose.Active ruzha kudzima mahedhifoni shandisa musimboti uyu, kupindira kwakanyanya kwemafungu eruzha munzvimbo kunobvisa kusvibiswa kweruzha.Iyo sisitimu iri mukati meinoshanda ruzha kudzima mahedhifoni inounganidza uye inoongorora ruzha, uye yobva yaigadzirisa kuburikidza neyakavakwa-mukati wedunhu kuti ishingaire kuburitsa ruzha rwechikamu chakatarisana, icho chinogona kudzimwa mune yakatarwa nzvimbo.Iyo yakaderera-frequency ruzha ine mafungu akareba, saka zviri nyore kuvhiringidza mumwe nemumwe munzvimbo, saka inosevenza-inodzima headphone tekinoroji inogona kunyatso kubvisa iyo yakaderera-frequency ruzha, uye inogona zvakare kushandiswa sepasina ruzha-kudzima. mahedhifoni.Muripo we frequency band.
2.2 Ongororo yeActive Noise Kudzima Mahedhifoni Kushanda System
Panguva ino, zvinoenderana nemusimboti wekushanda uye dhizaini yedhizaini inodzima mahedhifoni, anogona kupatsanurwa mumhando mbiri: mhando yemhinduro uye yekudyira kumberi mhando.Kudyisa kumberi kunoshanda kudzikisa ruzha mahedhifoni anonyanya kuumbwa ekunze maikorofoni, echipiri manzwi masosi, zvemukati zvemahedhifoni, uye anoshanda anoderedza ruzha maseketi nekufambisa nzvimbo yekufambisa inzwi kubva kune yechipiri ruzha sosi.Iyo inonzwika port ye earphone inounganidza kunze ambient ruzha.Kana chiratidzo cheruzha chaunganidzwa nemaikorofoni yekunze, inotumirwa kune yechipiri ruzha sosi kuburikidza neANC control circuit, uye hapana mhinduro loop.Maparamita ayo anoenderana anowanzo gadziriswa, saka haakwanise kuita nekukurumidza kugadzirisa kugadzirisa uye kutonga kwechikamu zvinoenderana nekuchinja kwekunze kwezvakatipoteredza, saka iyo inoshanda yekudzikisa ruzha kuita kwayo kuchakanganiswa nekunze kwekunze uye kuve kusagadzikana, uye ichaita basa mune imwe yakagadzikana. ruzha.Inogona kuburitsa yakanaka yekudzikisa ruzha maitiro, asi chiyero chekushandisa chichave chakanyanya kushomeka, uye kazhinji chinongoonekwa mune yakaderera-yekupedzisira mahedhifoni zvigadzirwa.Chikonzero chikuru ndechekuti iyo mahedhifoni idiki muhukuru, uye dhizaini yemukati yekudyisa kumberi inoshanda yekudzikisa ruzha musoro inogona kuitika nyore nyore.Feedback inoshanda ruzha kudzima mahedhifoni anonyanyo umbwa nemakrofoni emukati uye yechipiri manzwi masosi.Iyo inoumbwa neyemukati zvikamu zveearphone uye inoshanda inoderedza ruzha redunhu.Iyo maikorofoni yemukati iri mukati me earphone uye inowanzoiswa pamusuwo wenzeve canal.Kana maikorofoni yemukati inounganidza ruzha runopinda munzeve, inogadzirwa neANC ruzha rwekudzikisa ruzha rwekugadzirisa.Chikamu chinopesana neamplitude.Chiratidzo chechipiri chinonzwika chine frequency yakafanana chinozopedzisira chaendeswa kune yechipiri kurira sosi, uye ruzha rwechikamu chakatarisana chinoburitswa kuburikidza neyechipiri ruzha sosi, nekudaro uchiona inoshanda yekudzikisa ruzha.Iyo maikorofoni yemukati yemhinduro inoshanda ruzha kudzima mahedhifoni kazhinji iri padyo neyechipiri ruzha sosi.Nekuunganidza ruzha padhuze neyechipiri ruzha sosi, mhinduro loop ichaumbwa zvakare mukati meiyo ruzha system yekudzikisa ruzha, uye ipapo maparamita ekuderedza ruzha anozogadziriswa.Nzvimbo yemakrofoni yemukati padyo neyechipiri inonzwika sosi inogona kunyatso ratidza ruzha rwunonzwika pedyo nekunzwa, saka mhedzisiro yekudzikisa ruzha ichava nani, asi chimiro chemukati chichave chakaoma.Uye zvakare, nekuda kwekuvapo kweiyo loop yemhinduro, kana iyo yekudzikisa ruzha system isina kugadzirwa zvakanaka, kusagadzikana kwakadai sekuungudza kuchaitika nyore, iyo idambudziko zvakare nerudzi urwu rwekushanda kwekudzikisa ruzha tekinoroji.Mumakore achangopfuura, tekinoroji ine hukama nezvigadzirwa zvemagetsi munyika yangu yakagadzira nekukurumidza uye nekukurumidza, uye tekinoroji inosanganisa feed kumberi uye mhinduro yave zvishoma nezvishoma yave chinangwa chekutsvaga.Nekudaro, nekuda kwehukuru hwechimiro chemukati chezvivhariso, mamwe epakati-kusvika-akaderera-ekupedzisira-munzeve pamusika haakwanise kushandisa zvinobudirira mhinduro uye inosanganiswa matekinoroji ekuderedza ruzha, uye mazhinji acho anoshandisa dhizaini yekumberi chimiro kuti uwane kuderedza ruzha.
Mumakore achangopfuura, matekinoroji emunyika yangu ane chekuita nechigadzirwa akakura nekukurumidza uye nekukurumidza, achibatanidza feed kumberi uye mhinduro.
Iyo tekinoroji yakasanganiswa yave zvishoma nezvishoma yave kutarisa kwekutsvaga kwevanhu.Nekudaro, nekuda kwehukuru hwechimiro chemukati chezvivhariso, mamwe epakati-kusvika-akaderera-ekupedzisira-munzeve pamusika haakwanise kushandisa zvinobudirira mhinduro uye inosanganiswa matekinoroji ekuderedza ruzha, uye mazhinji acho anoshandisa dhizaini yekumberi chimiro kuti uwane kuderedza ruzha.
Nguva yekutumira: Kubvumbi-20-2022
