My team and I are currently making a program which use camera in the google glass to help blind people 'see' the interlocutor's emotion (happy, sad, angry, disgusted and so on). I need help in case you guys have an experience and know how to help blind people to get the the emotion information. The detection method is working well for normal people because they could see the result (text) in the monitor and now we want to help the blind people to get the same experience. At first, we think that if we might use voice e.g. the person on the left is happy, the person on the right is sad. But then, having voice output would be inconvenient when they are talking with other people.
Thanks for your help