Gulu la ofufuza ochokera ku National University of Singapore ndi Yonsei University (Korea) apanga njira yodziwira kutsegulidwa kwa maikolofoni obisika pa laputopu. Kuti muwonetse momwe njirayi imagwirira ntchito, fanizo lotchedwa TickTock linasonkhanitsidwa kutengera bolodi la Raspberry Pi 4, amplifier ndi transceiver programmable (SDR), yomwe imakupatsani mwayi wozindikira kutsegulira kwa maikolofoni ndi njiru kapena mapulogalamu aukazitape kuti mumvetsere. wogwiritsa ntchito. Njira yodziwira mosasamala ngati maikolofoni yatsegulidwa ndiyofunika chifukwa, ngati kamera yapaintaneti wogwiritsa ntchito amatha kuletsa kujambula pongophimba kamera, ndiye kuti kuyimitsa maikolofoni yomangidwa kumakhala kovuta ndipo sizidziwika bwino. imagwira ntchito komanso pomwe ayi.
Njirayi imachokera ku mfundo yakuti pamene maikolofoni ikugwira ntchito, maulendo omwe amatumiza zizindikiro za wotchi kwa otembenuzira analogi-to-digital amayamba kutulutsa chizindikiro cham'mbuyo chomwe chingathe kuzindikiridwa ndikulekanitsidwa ndi phokoso lomwe limayambitsidwa ndi machitidwe ena. Kutengera kukhalapo kwa ma radiation okhudzana ndi maikolofoni amtundu wa electromagnetic, munthu amatha kunena kuti kujambula ukupangidwa.
Chipangizocho chimafunikira kusinthidwa kwamitundu yosiyanasiyana yamabuku, popeza mawonekedwe a siginecha yotulutsidwayo amadalira kwambiri chip chomveka chomwe chimagwiritsidwa ntchito. Kuti mudziwe bwino ntchito ya maikolofoni, kunali koyeneranso kuthetsa vuto la kusefa phokoso kuchokera kumabwalo ena amagetsi ndikuganizira kusintha kwa chizindikiro kutengera kugwirizana.
Zotsatira zake, ofufuzawo adatha kusintha chipangizo chawo kuti azindikire modalirika ngati maikolofoni idatsegulidwa pa 27 mwa 30 yoyesedwa ya laputopu yopangidwa ndi Lenovo, Fujitsu, Toshiba, Samsung, HP, Asus ndi Dell. Zida zitatu zomwe njirayo sinagwire ntchito zinali Apple MacBook zitsanzo 2014, 2017 ndi 2019 (zikuganiziridwa kuti kutuluka kwa siginecha sikungathe kudziwika chifukwa cha chitetezo cha aluminiyamu yotchinga komanso kugwiritsa ntchito zingwe zazifupi zosinthika).
Ofufuzawo anayesanso kusintha njira yamagulu ena a zida, monga mafoni a m'manja, mapiritsi, oyankhula anzeru ndi makamera a USB, koma magwiridwe antchito anali otsika kwambiri - pazida 40 zoyesedwa, kuzindikira kunakhazikitsidwa pa 21 yokha, yomwe imafotokozedwa ndi kugwiritsa ntchito maikolofoni a analogi m'malo mwa digito, zolumikizira mabwalo ena ndi ma conductor aafupi omwe amatulutsa chizindikiro chamagetsi.
Source: opennet.ru