Talk-o-Meter is an iPhone app by Unperfekthaus that monitors a live two person conversation and creates graphs showing proportionally how much each person is talking–thus exposing any conversation bullies. Though, judging by the user reviews, it may be more a clever design concept than a working app.
The iPhone is placed between two people having a conversation and learns to separate the two voices. At intervals of 1, 2 or 5 minutes you see different lengths of red and blue bars that show what percentage of time each speaker was talking–thus exposing conversation bullies. Nobody has to be unpleasantly exhorted – from time to time everyone will have a cursory glance at the Talk-o-Meter and adapt if he is talking too much. Gentle biofeedback works.
via Nick Douglas