Umsebenzi wokunciphisa ingxolo ubaluleke kakhulu kwii-headphones.Enye kukunciphisa ingxolo kwaye uphephe ukunyusa kakhulu umthamo, ukuze kuncitshiswe umonakalo kwiindlebe.Okwesibini, ingxolo yokucoca ukuphucula umgangatho wesandi kunye nomgangatho wokufowuna.Ukunciphisa ingxolo kwahlulwe kukunciphisa ingxolo esebenzayo kunye nokunciphisa ingxolo.
Ukunciphisa ingxolo ngokusekelwe kwimigaqo yomzimba: ii-headphones zisetyenziselwa ukwandisa kunye nokusongela indlebe yonke yokunciphisa ingxolo.Zineemfuno eziphezulu zezinto eziphathekayo, ukungahambi kakuhle komoya kwaye akukho lula ukomisa emva kokubila.Uhlobo lwendlebe "lufakwe" kumjelo wendlebe ukuvala umjelo wendlebe ukunciphisa ingxolo.Akunakulungele ukugqoka ixesha elide, uxinzelelo lwangaphakathi nangaphandle komsele wendlebe alulingani, kwaye ixesha lokugqoka akufanele libe lide kakhulu, eliya kuchaphazela ukuva.
Ukunciphisa ingxolo esebenzayo kufumaneka ngokuhlalutya i-chip kwi-headset.Ulandelelwano lokunciphisa ingxolo lu:
1. Okokuqala, i-microphone yesignali efakwe kwi-earphone ibona ingxolo ye-low-frequency (100 ~ 1000Hz) kwindawo enokuviwa yindlebe (ukuya kwi-3000hz okwangoku).
2. Emva koko isignali yengxolo idluliselwa kwisiphaluka solawulo, esenza umsebenzi wexesha langempela.
3. I-hi fi horn ikhupha amaza esandi anesigaba esichaseneyo kunye ne-amplitude efanayo neyengxolo yokuphelisa ingxolo.
4. Ngoko ingxolo iyanyamalala kwaye ayivakali.
Ukunciphisa ingxolo kwahlulwe ngokweANC, ENC, CVC kunye neDSP, makhe sihlalutye ukuba athetha ukuthini la maNgesi.
Umgaqo osebenzayo we-ANC: (ukulawula ingxolo esebenzayo) kukuba i-microphone iqokelela ingxolo yendawo yangaphandle, kwaye inkqubo iyiguqule ibe yi-wave yesandi eguqulelwe kwaye iyongeza ekupheleni kophondo.Okokugqibela, isandi esiviwe ziindlebe zomntu sesi: ingxolo yendawo engqongileyo + ingxolo ejijelweyo yendawo.Iindidi ezimbini zengxolo zibekwe phezulu ukunciphisa ingxolo yeemvakalelo, kwaye umxhamli nguye ngokwakhe.Ukunciphisa ingxolo esebenzayo inokwahlulwa ibe yi-feedforward esebenzayo yokunciphisa ingxolo kunye nempendulo esebenzayo yokunciphisa ingxolo ngokwendawo yokuthatha imakrofoni.
I-Enc: (ukucinywa kwengxolo yendalo esingqongileyo) inokucinezela ngokufanelekileyo i-90% yengxolo yokubuyela umva kokusingqongileyo, ukuze kuncitshiswe ingxolo yokusingqongileyo ukuya kuthi ga kwi-35dB, ukuze abadlali bomdlalo bakwazi ukunxibelelana ngokukhululekileyo.Ngoluhlu lweemakrofoni ezimbini, bala ngokuchanekileyo isalathiso sokuthetha sesithethi, kwaye ususe zonke iintlobo zengxolo yokuphazamiseka kwindalo ngelixa ukhusela ilizwi ekujoliswe kulo kwicala eliphambili.
I-CVC: (ilizwi elicacileyo lokubanjwa) yitekhnoloji yokunciphisa ingxolo yesoftware yokufowuna.Ikakhulu kwi-echo eyenziwe ngexesha lokufowuna.Ngokusebenzisa isoftware ye-microphone ephindwe kabini, ibonelela nge-echo kunye nomsebenzi wokuphelisa ingxolo yomnxeba.Yeyona teknoloji iphezulu yokunciphisa ingxolo kwi-headset yeBluetooth yokufowuna okwangoku.
I-DSP: (ukulungiswa komqondiso wedijithali) ijolise ikakhulu kwingxolo ephezulu kunye nephantsi.Umgaqo osebenzayo kukuba imakrofoni iqokelela ingxolo yokusingqongileyo yangaphandle, kwaye ke inkqubo ikopisha isandi esingasemva esilingana nesandi sokusingqongileyo sangaphandle ukuphelisa ingxolo, ukuze kuphunyezwe isiphumo esingcono sokunciphisa ingxolo.Umthetho-siseko wokunciphisa ingxolo ye-DSP uyafana nokunciphisa ingxolo ye-ANC.Nangona kunjalo, ingxolo eya phambili nasemva yokunciphisa ingxolo ye-DSP ayithatyathelwanga ngokuthe ngqo kwaye ilungelelana ngaphakathi kwinkqubo.
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Isaziso selungelo lokushicilela: Eli nqaku linqaku lokuqala leblogger ye-CSDN "momo1996_233", elandela isivumelwano se-CC 4.0 by-sa.Ukuprintwa kwakhona, nceda uqhoboshele ikhonkco lomthombo wokuqala kunye nesi saziso.
Ikhonkco lokuqala: https://blog.csdn.net/momo1996_233/article/details/108659040
Ixesha lokuposa: Mar-19-2022
