After an illness during pregnancy deafened Doug and Naomi Foley’s baby, they got a call from a friend of the family who had a deaf and blind son. Her emphatic message: Learn American Sign Language.

Correction: The original video with this piece did not include captioning for some of the American Sign Language seen on screen. The video has been updated to include ...

Sign-Speak aims to use machine learning to make communicating through sign language easier. Cofounder Nikolas Kelly's own challenges communicating while deaf prompted the idea. The software translates ...