Kungiyar masu bincike daga Jami'ar Ben-Gurion ta Negev da Cibiyar Kimiyya ta Weizmann (Isra'ila) sun kirkiro wata dabara. () don sake gina tattaunawa na cikin gida da kiɗa ta amfani da nazarin girgizar da ba a iya gani ba na kwan fitila a cikin na'urar haske. An yi amfani da na'urar firikwensin lantarki da aka sanya a kan titi a matsayin mai tantancewa kuma, ta amfani da na'urar hangen nesa, an nufa da fitilar da ake gani ta taga. An dai gudanar da gwajin ne da fitulun LED masu karfin watt 12, sannan kuma an ba da damar tsara satar sauraren bayanai daga nesa na mita 25.
Hanyar tana aiki don fitilar da aka dakatar. Jijjiga sauti yana haifar da bambance-bambance a cikin matsa lamba na iska, wanda ke haifar da microvibrations na abin da aka dakatar. Irin waɗannan microvibrations suna haifar da karkatar da haske a kusurwoyi daban-daban saboda ƙaurawar jirgin sama na haske, wanda za'a iya gano shi ta amfani da firikwensin lantarki mai mahimmanci kuma a juyar da shi cikin sauti. An yi amfani da na'urar hangen nesa don ɗaukar kwararar haske da kai shi zuwa firikwensin. Siginar da aka karɓa daga firikwensin (Thorlabs PDA100A2 dangane da photodiode) an canza shi zuwa nau'i na dijital ta amfani da 16-bit analog-to-dijital Converter ADC NI-9223.
An aiwatar da rabuwar bayanan da ke da alaƙa da sauti daga siginar gani na gabaɗaya a matakai da yawa, gami da , daidaitawa, rage yawan amo da gyaran girman girman ta mita. An shirya rubutun MATLAB don aiwatar da siginar. Ingantacciyar maido da sauti lokacin ɗaukar sigogi daga nesa na mita 25 ya zama isasshe don tantance magana ta Google Cloud Speech API da ƙayyade abun da ke cikin kiɗa ta hanyar sabis na Shazam da SoundHound.
A cikin gwajin, an sake yin sauti a cikin ɗakin a matsakaicin girma don masu magana da ke samuwa, watau. sautin yana da ƙarfi sosai fiye da magana ta al'ada. Hakanan ba a zaɓi fitilun LED ta hanyar kwatsam ba, amma azaman samar da mafi girman sigina-zuwa amo (sau 6.3 sama da fitilar incandescent da sau 70 sama da fitilar kyalli). Masu binciken sun yi bayanin cewa ana iya haɓaka kewayon harin da hankali ta hanyar amfani da na'urar hangen nesa mai girma, na'urar firikwensin inganci, da 24- ko 32-bit analog-to-digital Converter (ADC); An gudanar da gwajin ta hanyar amfani da na'urar hangen nesa. firikwensin arha, da ADC 16-bit. .
Sabanin hanyar da aka tsara a baya"", wanda ke ɗauka da kuma nazarin abubuwan da ke girgiza a cikin daki, kamar gilashin ruwa ko kunshin guntu, Lamphone yana ba da damar tsara sauraro a ainihin lokacin, yayin da makirufo na gani don sake gina ƴan daƙiƙa na magana yana buƙatar ƙididdige ƙididdiga masu ɗaukar nauyi. sa'o'i . Sabanin hanyoyin da aka dogara akan amfani ko a matsayin makirufo, Lamphone yana ba da damar kai hari daga nesa, ba tare da buƙatar gudanar da malware akan na'urori a cikin harabar ba. Sabanin harin da ake amfani da shi , Lamphone baya buƙatar haske na abu mai girgiza kuma ana iya samarwa a cikin yanayin m.
source: budenet.ru