TWS headset digitaalinen chiratidzo ADM
Nekukura kunoenderera mberi kweTWS (Chokwadi isina waya stereo) headset musika.Zvido zvevashandisi zveruzivo rwechigadzirwa zvakakwidziridzwa kubva nyore zvinongedzo zvinokurumidza kusvika kune yakakwirira zviyero.Semuenzaniso, segore rino, nhamba huru yeTWS mahedhifoni ane mafoni akajeka akabuda pamusika.
Kugonesa kutaurirana kwezwi kwakajeka munzvimbo dzine ruzha, zvinokwanisika here kugadzira zvirongwa zvinosanganisa masaini kubva munzeve yemukati uye ekunze maikorofoni kuti iite yakangwara, nharaunda-inogadzirisa sub-band musanganiswa tekinoroji.Muchokwadi, mamwe makambani epamba uye ekunze algorithm akazvipira kune izvi, uye akawana mamwe mhedzisiro.
Ehe, makambani mazhinji ekugadzirisa ikozvino ane kukoshesa kwakakosha pakufona kwekudzikisa ruzha mhinduro senge edge AI (iyi ndiyo imwe), asi kutaura zvazviri, yakagadziridzwa zvakanyanya kune iripo yekufona kudzikisa ruzha mhinduro, saka chikamu ichi chinobviswa, ngatitarisei. zvimwe zvikamu zvekutanga kutanga Nhanganyaya, ndiko kuti, zvingaitwe nedanidzo kuderedza ruzha.
Pakazara, kufona kuderedza ruzha kunovimba neUplink (uplink) uye Downlink (downlink) kuwiriranisa.Zvinenge maikorofoni Array/AEC/NS/EQ/AGC/DRC, hukama hunonzwisisika ndohunotevera:
ADM (Adaptive Directional Microphone Array) idhijitari yekugadzira masaini tekinoroji inogadzira inotungamira kana ruzha-inodzima maikorofoni uchishandisa maviri chete omnidirectional maikorofoni.Iyo ADM inozvishandura inotungamira maitiro kuti ipe yakakwana kudzikamisa ruzha munzvimbo dzakasiyana siyana uku ichichengetedza yakaringana chiratidzo chemhando.Iyo inogadzirisa maitiro inokurumidza, ine yakasimba frequency selectivity, uye inogona kubvisa kupindira kwakawanda panguva imwe chete.
Pamusoro pehunhu hwayo hwakanaka hwekutungamira, maADM anonyanya kubatwa neruzha rwemhepo pane yechinyakare acoustic directional maikorofoni.ADM tekinoroji inobvumira marudzi maviri emakrofoni masisitimu: "endfire" uye "broadfire".
Mune endfire kumisikidza, siginecha sosi (muromo wemushandisi) iri pane axis (mutsara unobatanidza maikorofoni maviri).Muchigadziriso chakakura, chinonongedza mutsara wakatwasuka pane yakachinjika axis.
Mune endfire configuration, iyo ADM ine maitiro maviri ekushanda;"kure-talk" uye "pedyo-kutaura".Mune kure-pass mode, iyo ADM inoita seyakanyanya kutungamira maikorofoni, inodzora chiratidzo kubva kumashure uye mativi apo ichichengetedza chiratidzo kubva kumberi.Mumamiriro ekutaura-pedyo, iyo ADM inoita seyakanakisa-inodzima maikorofoni, zvinobudirira kubvisa manzwi ari kure.Rusununguko rwakasununguka rwekugadzirwa kweacoustic kunoita kuti maADM ave akanaka kune nharembozha, iyo inobvumira "kunyoro" kuchinja pakati pevatauriri vekure uye vatauri vepedyo.Nekudaro, kana rudzi urwu rwekugadzira ruchishandiswa pamaearphone, kunyanya TWS earphones, inorambidzwa zvakanyanya nekuti mushandisi anoipfeka nemazvo.Zvakafanana nemaairpods, munyori akaona kuti vanhu vazhinji vane “marudzi ese echienzi” nzira dzekupfeka munjanji, dzimwe dzacho dziri nzeve dzemushandisi.Chimiro, uye mamwe maitiro ekupfeka, anoita kuti algorithm isashande munzvimbo yakanaka.
Acoustic Echo Canceller (AEC)
Kana chikamu chechiratidzo mu duplex (pamwe chete-nzira mbiri) kutaurirana kunodzokera kune iyo sosi chiratidzo, inonzi "echo".Mune analogi kureba uye anenge ese edhijitari masisitimu ekutaurirana, kunyangwe masaini madiki echo anogona kukonzera kukanganisa nekuda kwekunonoka kwekufamba-famba.
Muchiteshi chekutaura nezwi, maacoustic echoes anogadzirwa nekuda kwekubatana kweacoustic pakati pemutauri nemakrofoni.Nekuda kweiyo nonlinear gadziriso yakashandiswa muchiteshi chekutaurirana, senge kurasikirwa mavhokodha uye transcoding, iyo acoustic echoes inofanirwa kugadziriswa munharaunda (yakabviswa) mukati memudziyo.
Noise Suppressor (NS)
Ruzha rwekudzvanya tekinoroji inodzikisa ruzha uye yechinguvana mumasaini ekutaura-imwe nzira, inovandudza chiratidzo-ku-ruzha reshiyo, inovandudza kunzwisisika kwekutaura, uye inoderedza kunzwa kuneta.
Ehe, kune nzira dzakawanda dzakananga muchikamu ichi, senge BF (Beamforming), kana PF (Post filter) nedzimwe nzira dzekugadzirisa.Kazhinji, AEC, NS, BF, uye PF ndizvo zvikamu zvakakosha zvekudzikisa ruzha.Ichokwadi kuti yega yega algorithm solution mupi ane mabhenefiti akasiyana uye akashata.
Mune yakajairwa izwi rekutaura system, mwero wechiratidzo chezwi unogona kusiyanisa zvakanyanya nekuda kwechinhambwe chiri pakati pemushandisi nemakrofoni, uye nekuda kwehunhu hwechiteshi chekutaurirana.
Dynamic Range Compression (DRC) ndiyo nzira iri nyore yekuenzanisa mazinga echiratidzo.Kudzvanya kunoderedza kusimba kwechiratidzo nekudzikisa (kumanikidza) zvikamu zvekutaura zvine simba uku uchichengetedza zvakakwana zvikamu zvekutaura zvisina simba.Naizvozvo, chiratidzo chese chinogona kukwidziridzwa zvakanyanya kuitira kuti zviratidzo zvisina simba zvinzwike zviri nani.
AGC tekinoroji yedhijitari inowedzera kuwedzera kwechiratidzo (kukudza) kana chiratidzo chezwi chisina kusimba, uye chinoimanikidza kana chiratidzo chezwi chakasimba.Munzvimbo dzine ruzha, vanhu vanowanzo taurisa zvakanyanya, uye izvi zvinogadzika maikorofoni chiteshi kuwana kune diki kukosha, nekudaro kuderedza ambient ruzha uku uchichengeta izwi rekufarira riri padanho rakakwana.Zvakare, munzvimbo ine runyararo, vanhu vanotaura chinyararire kuitira kuti manzwi avo akwidziridzwe negorigorithm pasina ruzha rwakanyanya.
Nguva yekutumira: Jun-07-2022
