That last part seems to really put a damper on things, since the problem the author describes is that a person with a hearing aid requires speakers to take turn

That last part seems to really put a damper on things, since the problem the author describes is that a person with a hearing aid requires speakers to take turns. Apparently, when people speak together, the multiple voices clash. Even if the hearing aid amplifies voices only, that problem remains. Still, cooler than a lot of things Deep Learning is being applied to these days.