Israel’s Nemesysco Layered Voice Analysis (LVA) technology detects stress and emotion. It has security, medical, recruitment and insurance applications. It can even sense when two individuals “click” – on the phone, over skype, or locally on a handheld PDA or smartphone.
http://www.israel21c.org/technology/a-different-kind-of-job-interview-impressing-the-computer
http://www.youtube.com/watch?v=KEilei5AnbI&feature=player_embedded
http://www.nemesysco.com/