From major brands to regional favorites, the food at the National Restaurant Association show in Chicago is always a topic of conversation. “All the food, all the novelties — I mean, I have eaten meat salmon today, pea sausages, soya beef,” said attendee Gerardo Martinez. But this year artificial intelligence is also on the menu, as exhibitors make the case for a full embrace. Soundhound has a voice AI technology that processes speech like the human brain.