American Sign Language is a language based on hand gestures that deaf Americans use to communicate. Unfortunately many hearing Americans don't speak or know ASL. A company called Enable Talk is developing a tool for deaf people to more easily talk to hearing people. The device is a pair of gloves that are used with a cell phone to create audible language from ASL hand gestures.
Singularity Hub has a good article on the gloves.
It is already easier to communicate with a deaf person through technology. The use of texting and certain Apps make it possible to talk to a deaf person on the phone. Many of the Apps are still flawed, but are a good start.
Google has a Youtube function for captions. The captions aren't always correct, but yet again, they are a good start.
These gloves, however, could make face to face communication much easier. Many deaf people do not speak verbally. There are disagreements about Oralism, but when a deaf or hard of hearing person is placed in a hearing environment, and communication is necessary, many hearing people do not know sign language. These gloves would allow them to speak with people that could not normally understand them.
Ideally, it would be nice for hearing people to learn ASL. It would be nice for hearing culture to be more accepting of deaf culture. For now, these gloves will help.
For more information on deaf culture go to this page.
You might also want to check out Switched at Birth.