Zvinokurudzirwa kuti maburi ekunze eruzha pane iyo kesi yese ave padyo neMIC sezvinobvira, izvo zvinogona kurerutsa dhizaini yemagaskets uye ane hukama mechanical zvimiro.Panguva imwecheteyo, gomba rekurira rinofanirwa kuchengetwa kure nekure sezvinobvira kubva kune vatauri uye mamwe masosi eruzha kuti kuderedze kukanganiswa kweaya masaini asina kufanira pane iyo MIC yekuisa.
Kana akawanda maMIC akashandiswa mudhizaini, kusarudzwa kweMIC ruzha gomba chinzvimbo kunonyanya kuganhurirwa nechigadzirwa application modhi uye shandisa algorithm.Kusarudza chinzvimbo cheMIC uye gomba rayo rekurira pakutanga kwemaitiro ekugadzira kunogona kudzivirira kukuvadzwa kunokonzerwa nekuzochinja kwecasing.Mutengo wePCB wedunhu shanduko.
sound channel design
Iyo frequency yekupindura curve yeMIC mune yese dhizaini yemuchina inoenderana ne frequency yekupindura curve yeMIC pachayo uye mamesheni echikamu chimwe nechimwe cheinzwi inlet chiteshi, kusanganisira saizi yegomba rekurira pane casing, saizi ye gasket uye saizi yekuvhurwa kwePCB.Pamusoro pezvo, hapafanirwe kuve nekudonhedza mugero rekupinza ruzha.Kana paine kuvuza, zvinokonzeresa nyore echo uye ruzha matambudziko.
Ipfupi uye yakafara nzira yekuisa ine zvishoma paMIC frequency yekupindura curve, nepo refu uye nhete yekupinza chiteshi inogona kuburitsa resonance peaks muodhiyo frequency renji, uye yakanaka yekuisa chiteshi dhizaini inogona kuwana ruzha rwakati sandara muredhiyo renji.Naizvozvo, zvinokurudzirwa kuti mugadziri ayere frequency yekupindura curve yeMIC ine chassis uye inonzwika inlet chiteshi panguva yedhizaini kuti atonge kana kuita kunosangana nezvinodiwa zvekugadzira.
Kune dhizaini uchishandisa iyo yekumberi inonzwika MEMS MIC, iyo dhayamita yekuvhurwa kwegasket inofanira kunge iri 0.5mm yakakura kupfuura dhayamita yegomba reinzwi remakrofoni kudzivirira kukanganiswa kwekuvhurwa kwegasket uye nzvimbo yekuisa mu x uye y nzira, uye kuve nechokwadi chekuti gasket rinoita sechisimbiso.Kune basa reMIC, iyo yemukati dhayamita ye gasket haifanirwe kunge yakakura, chero ruzha runobuda runogona kukonzera echo, ruzha uye frequency mhinduro matambudziko.
Kune dhizaini uchishandisa yekumashure ruzha (zero kureba) MEMS MIC, inonzwika inlet chiteshi inosanganisira mhete yewelding pakati peMIC nePCB yemuchina wese uye kuburikidza neburi paPCB yemuchina wese.Gomba rekurira paPCB yemuchina wese unofanirwa kuve wakakura zvakafanira kuti ive nechokwadi chekuti haukanganise Frequency mhinduro curve, asi kuitira kuti ive nechokwadi chekuti nzvimbo yewelding yemhete yepasi paPCB haina kunyanyokurisa. inokurudzirwa kuti dhayamita yePCB kuvhurwa kwemuchina wese kubva pa0.4mm kusvika 0.9mm.Kuti udzivise solder paste kubva kunyunguduka mugomba rekurira uye kuvhara gomba rekurira panguva yekuyerera, gomba rekurira paPCB harigone kuvezwa nesimbi.
Echo uye Noise Control
Mazhinji ematambudziko echo anokonzerwa nekusaisa chisimbiso chegasket.Kubuda kweruzha pa gasket kunobvumira kurira kwehwamanda uye kumwe ruzha kupinda mukati mekesi uye kutorwa neMIC.Izvo zvakare zvinokonzeresa kuti ruzha rwakagadzirwa nemamwe masosi eruzha rwutorerwe neMIC.Echo kana ruzha matambudziko.
Kune echo kana ruzha matambudziko, kune akati wandei nzira dzekuvandudza:
A. Deredza kana kudzikamisa kuburitsa kwechiratidzo amplitude yemutauri;
B. Wedzera chinhambwe pakati pemutauri neMIC nekushandura nzvimbo yemukurukuri kusvika maungira awira mukati mechikamu chinogamuchirwa;
C. Shandisa yakakosha echo cancellation software kuti ubvise chiratidzo chemukurukuri kubva kumagumo eMIC;
D. Deredza kuwanikwa kweMIC kwemukati kwebaseband chip kana main chip kuburikidza nesoftware marongero
Kana iwe uchida kuziva zvakawanda, ndapota tinya webhusaiti yedu: https://www.romanearbuds.com,
Nguva yekutumira: Jul-07-2022
