In groups people screen out chatter around them – and now technology can do the same It’s the perennial "cocktail party problem" – standing in a room full of people, drink in hand, trying to hear what your fellow guest is saying. In fact, human beings are remarkably adept at holding a conversation with one person while filtering out competing voices. However, perhaps surprisingly, it’s a skill that technology has until recently been unable to replicate. And that matters when it comes to using audio evidence in court cases. Voices in the background can make it hard to be certain who’s speaking and what’s being said, potentially making recordings useless. Electrical engineer Keith McElveen, founder and chief technology officer of Wave Sciences, became interested in the problem when he […]
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