See T895 Scout Brian Richer, 36 seconds into this video when he demonstrates signing the word Hi and the computer speaks it.

http://cw33.com/2015/03/01/hack-city-dallas-hosts-hackathon/

Here is another story.  Brian's project to convert sign language to speech is mentioned and his picture is the fifth.

http://centraltrack.com/Culture/6679/Hack-City/Scenes-From-This-Weekends-24Hour-Hackathon-Race-In-Fair-Park