Alexa, how many whiskers does a cat have? Alexa, call me “cheeseburger with fries.” Alexa, do my parents still love me? Devices fueled by artificial intelligence—including smart speakers—have been ...

Classrooms can be noisy places. Any teacher who leaves work with a sore throat knows this, and research from audiologists and speech-language pathologists backs it up. But because people can’t see ...