Iqembu labacwaningi abavela emanyuvesi amahlanu aseMelika lenze indlela yokuhlasela eseceleni ye-EarSpy, eyenza kube nokwenzeka ukulalela izingxoxo zocingo ngokuhlaziya ulwazi oluvela kuzinzwa ezinyakazayo. Le ndlela isekelwe eqinisweni lokuthi ama-smartphones esimanje afakwe i-accelerometer ne-gyroscope ezwelayo, ephinde iphendule ekudlidlizeni okubangelwa isipikha esinamandla aphansi sedivayisi, esisetshenziswa lapho kuxhunywana ngaphandle kwesipika. Esebenzisa izindlela zokufunda zomshini, umcwaningi ukwazile ukubuyisela ingxenye yenkulumo ezwakale kudivayisi ngokusekelwe kulwazi olutholwe kuzinzwa ezinyakazayo nokunquma ubulili besipikha.
Ngaphambilini, kukholakala ukuthi ukuhlasela kwesiteshi esiseceleni okubandakanya izinzwa ezinyakazayo kungenziwa kuphela kusetshenziswa izipikha ezinamandla ezisetshenziselwa ukushaya kwe-hands-free, futhi izipikha ezizwakalayo lapho ifoni ibekwe endlebeni aziholeli ekuvuzeni. Kodwa-ke, ukwanda kokuzwela kwezinzwa kanye nokusetshenziswa kwezipikha ezinamandla ezikabili ezindlebeni kuma-smartphone esimanje kusishintshile isimo. Ukuhlasela kungenziwa kunoma yiziphi izinhlelo zokusebenza zeselula zeplathifomu ye-Android, njengoba ukufinyelela kuzinzwa ezinyakazayo kunikezwa izinhlelo zokusebenza ngaphandle kwezimvume ezikhethekile (ngaphandle kwe-Android 13).
Ukusetshenziswa kwenethiwekhi ye-convolutional neural kanye nama-algorithms wokufunda komshini wakudala kwenze ukuthi, lapho kuhlaziywa ama-spectrogram akhiqizwe ngokusekelwe kudatha evela ku-accelerometer ku-smartphone ye-OnePlus 7T, ukuzuza ukunemba kokunqunywa kobulili okungu-98.66%, ukuzimisela kwesipika okungu-92.6%, kanye ukunqunywa kwedijithi ekhulunyiwe ka-56.42%. Ku-smartphone ye-OnePlus 9, lezi zibalo bezingu-88.7%, 73.6% no-41.6%, ngokulandelana. Lapho ifoni yesipikha ivuliwe, ukunemba kokubonwa kwenkulumo kukhuphuke kwafinyelela ku-80%. Ukuze urekhode idatha kusuka ku-accelerometer, kusetshenziswe uhlelo lokusebenza olujwayelekile lwe-Physics Toolbox Sensor Suite.
Ukuze kuvikelwe lolu hlobo lokuhlasela, izinguquko sezenziwe kakade kuplathifomu ye-Android 13 ekhawulela ukunemba kwedatha evela kuzinzwa ezinikezwe ngaphandle kwamandla akhethekile ukuya ku-200 Hz. Lapho kwenziwa isampula ku-200 Hz, ukunemba kokuhlasela kwehliselwa ku-10%. Kuyaphawuleka futhi ukuthi ngaphezu kwamandla nenani lezikhulumi, ukunemba kuphinde kuthonywe kakhulu ukusondela kwezikhulumi ezinzwa ezinyakazayo, ukuqina kwezindlu kanye nokuba khona kokuphazanyiswa kwangaphandle kwemvelo.
Source: opennet.ru