16 May 2019 Scientists are developing a hearing aid that will separate the voices you want to hear from those you don't Scientists are developing a hearing aid that could remedy the "cocktail party" problem - where you find yourself in a crowded room and you struggle to separate the voice of the person you want to hear from background chatter. Related Links The 'Cocktail Party Phenomenon' - how to hear in noisy environments 5 tips on better communication for people with hearing loss