Iqela labaphandi abavela kwiiyunivesithi ezintlanu zaseMelika liye laphuhlisa indlela yokuhlaselwa kwe-channel ye-EarSpy, eyenza kube lula ukuphulaphula iingxoxo zefowuni ngokuhlalutya ulwazi oluvela kwi-motion sensors. Indlela isekwe kwinto yokuba ii-smartphones zanamhlanje zixhotyiswe nge-accelerometer ebuthathaka kunye ne-gyroscope, ekwaphendula ukungcangcazela okubangelwa sisandisi-lizwi esinamandla aphantsi sesixhobo, esisetyenziswa xa unxibelelana ngaphandle kwespeakerphone. Ukusebenzisa iindlela zokufunda ngomatshini, umphandi wakwazi ukubuyisela ngokuyinxenye intetho eviweyo kwisixhobo esisekelwe kulwazi olufunyenwe kwi-motion sensors kunye nokumisela isini sesithethi.
Ngaphambili, bekukholelwa ukuba uhlaselo lwe-channel-channel olubandakanya izinzwa ezishukumayo lunokwenziwa kuphela kusetyenziswa izithethi ezinamandla ezisetyenziselwa ukufowuna okungenazandla, kwaye izithethi ezivakalayo xa ifowuni ibekwe endlebeni azikhokeleli ekuvuzeni. Nangona kunjalo, ukonyusa uvakalelo lwenzwa kunye nokusetyenziswa kwezithethi ezinamandla ngakumbi ezineendlebe ezimbini kwii-smartphones zanamhlanje ziyitshintshile imeko. Uhlaselo lunokwenziwa kuzo naziphi na izicelo zeselula zeqonga le-Android, ekubeni ukufikelela kwiinzwa ezishukumayo kunikezelwe kwizicelo ngaphandle kweemvume ezikhethekileyo (ngaphandle kwe-Android 13).
Ukusetyenziswa kwenethiwekhi ye-neural ye-convolutional kunye ne-classical machine algorithms yokufunda kwenza ukuba kwenzeke, xa kuhlalutywa ii-spectrograms ezenziwe ngokusekelwe kwidatha evela kwi-accelerometer kwi-smartphone ye-OnePlus 7T, ukufezekisa ukuchaneka kokuzimisela ngokwesini kwe-98.66%, ukuzimisela kwesithethi kwi-92.6%, kunye idijithi ethethiweyo ukuzimisela 56.42%. Kwi-smartphone ye-OnePlus 9, la manani ayengama-88.7%, 73.6% kunye ne-41.6%, ngokulandelanayo. Xa i-speakerphone ivuliwe, ukuchaneka kokuqatshelwa kwentetho kwanda ukuya kwi-80%. Ukurekhoda idatha kwi-accelerometer, i-Fiziksi ye-Toolbox ye-Sensor Suite ye-mobile application isetyenzisiweyo.
Ukukhusela kolu hlobo lohlaselo, utshintsho sele lwenziwe kwiqonga le-Android 13 elinciphisa ukuchaneka kwedatha evela kwiinzwa ezibonelelwe ngaphandle kwamandla akhethekileyo kwi-200 Hz. Xa isampuli kwi-200 Hz, ukuchaneka kohlaselo kuyancipha ukuya kwi-10%. Ukongezelela kuphawulwe ukuba ukongeza kumandla kunye nenani lezithethi, ukuchaneka kwakhona kuchaphazeleka kakhulu ngokusondela kwezithethi kwi-motion sensors, ukuqina kwezindlu kunye nobukho bokuphazamiseka kwangaphandle kokusingqongileyo.
umthombo: opennet.ru