Weve all been there. Youre standing around, trying to have a conversation — meaningful or otherwise — but that wretched, raucous noise means all you can do is cock your head and mouth I cant hear you! to your friend. San Francisco-based startup Soundhawk doesnt want that to ever happen again. The team cant boost your hearing to Superman-esque levels, but with a new $299 gadget they can at least augment your ears when you need it the most.